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9778997468 = 2222719975393
BaseRepresentation
bin10010001101101111…
…11010100011011100
3221020111220112122102
421012313322203130
5130011410404333
64254205504232
7464222051462
oct110667724334
927214815572
109778997468
114168a97599
121a8ab72078
13bcac8b646
1468aa74832
153c37a5ae8
hex246dfa8dc

9778997468 has 24 divisors (see below), whose sum is σ = 17200430352. Its totient is φ = 4864619264.

The previous prime is 9778997443. The next prime is 9778997477. The reversal of 9778997468 is 8647998779.

It is a super-2 number, since 2×97789974682 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9778997395 and 9778997404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1810580 + ... + 1815972.

It is an arithmetic number, because the mean of its divisors is an integer number (716684598).

Almost surely, 29778997468 is an apocalyptic number.

It is an amenable number.

9778997468 is a deficient number, since it is larger than the sum of its proper divisors (7421432884).

9778997468 is a wasteful number, since it uses less digits than its factorization.

9778997468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7621 (or 7619 counting only the distinct ones).

The product of its digits is 384072192, while the sum is 74.

The square root of 9778997468 is about 98888.8136646406. The cubic root of 9778997468 is about 2138.4451298972.

The spelling of 9778997468 in words is "nine billion, seven hundred seventy-eight million, nine hundred ninety-seven thousand, four hundred sixty-eight".

Divisors: 1 2 4 227 454 908 1997 3994 5393 7988 10786 21572 453319 906638 1224211 1813276 2448422 4896844 10769821 21539642 43079284 2444749367 4889498734 9778997468