9778509511480 has 32 divisors (see below), whose sum is σ = 22002465183840. Its totient is φ = 3911258243200.

The previous prime is 9778509511471. The next prime is 9778509511513. The reversal of 9778509511480 is 841159058779.

It is a super-2 number, since 2×9778509511480² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3457279 + ... + 5613358.

It is an arithmetic number, because the mean of its divisors is an integer number (687577036995).

Almost surely, 2^{9778509511480} is an apocalyptic number.

It is an amenable number.

9778509511480 is an abundant number, since it is smaller than the sum of its proper divisors (12223955672360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9778509511480 is a wasteful number, since it uses less digits than its factorization.

9778509511480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097599 (or 9097595 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 64.

The spelling of 9778509511480 in words is "nine trillion, seven hundred seventy-eight billion, five hundred nine million, five hundred eleven thousand, four hundred eighty".