2972515991796 has 36 divisors (see below), whose sum is σ = 8091849090052. Its totient is φ = 914620305024.

The previous prime is 2972515991771. The next prime is 2972515991801. The reversal of 2972515991796 is 6971995152792.

2972515991796 is a `hidden beast` number, since 2 + 9 + 7 + 2 + 515 + 9 + 9 + 17 + 96 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 818120250000 + 2154395741796 = 904500^2 + 1467786^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3175764481 + ... + 3175765416.

Almost surely, 2^{2972515991796} is an apocalyptic number.

2972515991796 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2972515991796 is an abundant number, since it is smaller than the sum of its proper divisors (5119333098256).

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

2972515991796 is a wasteful number, since it uses less digits than its factorization.

2972515991796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6351529920 (or 6351529915 counting only the distinct ones).

The product of its digits is 192893400, while the sum is 72.

The spelling of 2972515991796 in words is "two trillion, nine hundred seventy-two billion, five hundred fifteen million, nine hundred ninety-one thousand, seven hundred ninety-six".