9638763796772 has 72 divisors (see below), whose sum is σ = 19140926466816. Its totient is φ = 4239446904000.

The previous prime is 9638763796771. The next prime is 9638763796853. The reversal of 9638763796772 is 2776973678369.

It is not an unprimeable number, because it can be changed into a prime (9638763796771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155005247 + ... + 155067417.

It is an arithmetic number, because the mean of its divisors is an integer number (265846200928).

Almost surely, 2^{9638763796772} is an apocalyptic number.

It is an amenable number.

9638763796772 is a deficient number, since it is larger than the sum of its proper divisors (9502162670044).

9638763796772 is a wasteful number, since it uses less digits than its factorization.

9638763796772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72561 (or 72548 counting only the distinct ones).

The product of its digits is 6049137024, while the sum is 80.

The spelling of 9638763796772 in words is "nine trillion, six hundred thirty-eight billion, seven hundred sixty-three million, seven hundred ninety-six thousand, seven hundred seventy-two".