1117997564428 has 12 divisors (see below), whose sum is σ = 1973809860120. Its totient is φ = 554051890112.

The previous prime is 1117997564413. The next prime is 1117997564441. The reversal of 1117997564428 is 8244657997111.

It is a self number, because there is not a number n which added to its sum of digits gives 1117997564428.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236722518 + ... + 1236723421.

It is an arithmetic number, because the mean of its divisors is an integer number (164484155010).

Almost surely, 2^{1117997564428} is an apocalyptic number.

It is an amenable number.

1117997564428 is a deficient number, since it is larger than the sum of its proper divisors (855812295692).

1117997564428 is a wasteful number, since it uses less digits than its factorization.

1117997564428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473446056 (or 2473446054 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 64.

The spelling of 1117997564428 in words is "one trillion, one hundred seventeen billion, nine hundred ninety-seven million, five hundred sixty-four thousand, four hundred twenty-eight".