9774090549 has 12 divisors (see below), whose sum is σ = 14255201376. Its totient is φ = 6452797032.

The previous prime is 9774090499. The next prime is 9774090553. The reversal of 9774090549 is 9450904779.

9774090549 is a `hidden beast` number, since 9 + 7 + 7 + 4 + 0 + 90 + 549 = 666.

It is not a de Polignac number, because 9774090549 - 2¹¹ = 9774088501 is a prime.

It is a super-2 number, since 2×9774090549² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9774090495 and 9774090504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9774094549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5270967 + ... + 5272820.

It is an arithmetic number, because the mean of its divisors is an integer number (1187933448).

Almost surely, 2^9774090549 is an apocalyptic number.

It is an amenable number.

9774090549 is a deficient number, since it is larger than the sum of its proper divisors (4481110827).

9774090549 is a wasteful number, since it uses less digits than its factorization.

9774090549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10543896 (or 10543893 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The square root of 9774090549 is about 98864.0002680450. Note that the first 3 decimals coincide. The cubic root of 9774090549 is about 2138.0873927278.

The spelling of 9774090549 in words is "nine billion, seven hundred seventy-four million, ninety thousand, five hundred forty-nine".