1172864020776 has 128 divisors (see below), whose sum is σ = 3599399040000. Its totient is φ = 317466910656.

The previous prime is 1172864020763. The next prime is 1172864020789. The reversal of 1172864020776 is 6770204682711.

It is an interprime number because it is at equal distance from previous prime (1172864020763) and next prime (1172864020789).

It is a super-2 number, since 2×1172864020776² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3592966 + ... + 3905781.

It is an arithmetic number, because the mean of its divisors is an integer number (28120305000).

Almost surely, 2^{1172864020776} is an apocalyptic number.

It is an amenable number.

1172864020776 is an abundant number, since it is smaller than the sum of its proper divisors (2426535019224).

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

1172864020776 is a wasteful number, since it uses less digits than its factorization.

1172864020776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7498796 (or 7498778 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 51.

The spelling of 1172864020776 in words is "one trillion, one hundred seventy-two billion, eight hundred sixty-four million, twenty thousand, seven hundred seventy-six".