7972036398844 has 24 divisors (see below), whose sum is σ = 16374993686240. Its totient is φ = 3324246837696.

The previous prime is 7972036398827. The next prime is 7972036398863. The reversal of 7972036398844 is 4488936302797.

It is a happy number.

It is a super-2 number, since 2×7972036398844² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 3847506879 + ... + 3847508950.

Almost surely, 2^{7972036398844} is an apocalyptic number.

7972036398844 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

7972036398844 is an abundant number, since it is smaller than the sum of its proper divisors (8402957287396).

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

7972036398844 is a wasteful number, since it uses less digits than its factorization.

7972036398844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7695015877 (or 7695015875 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 70.

The spelling of 7972036398844 in words is "seven trillion, nine hundred seventy-two billion, thirty-six million, three hundred ninety-eight thousand, eight hundred forty-four".