1157189772928 has 64 divisors (see below), whose sum is σ = 2635260102720. Its totient is φ = 495827988480.

The previous prime is 1157189772901. The next prime is 1157189772971. The reversal of 1157189772928 is 8292779817511.

It is a tau number, because it is divible by the number of its divisors (64).

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, 3945075 + ... + 4228237.

It is an arithmetic number, because the mean of its divisors is an integer number (41175939105).

Almost surely, 2^{1157189772928} is an apocalyptic number.

It is an amenable number.

1157189772928 is an abundant number, since it is smaller than the sum of its proper divisors (1478070329792).

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

1157189772928 is an equidigital number, since it uses as much as digits as its factorization.

1157189772928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287745 (or 287733 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 67.

The spelling of 1157189772928 in words is "one trillion, one hundred fifty-seven billion, one hundred eighty-nine million, seven hundred seventy-two thousand, nine hundred twenty-eight".