61131967972096 has 72 divisors (see below), whose sum is σ = 142303369527200. Its totient is φ = 26199414807552.

The previous prime is 61131967972087. The next prime is 61131967972109. The reversal of 61131967972096 is 69027976913116.

It is a super-2 number, since 2×61131967972096² (a number of 28 digits) contains 22 as substring.

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, 348012411 + ... + 348188026.

Almost surely, 2^{61131967972096} is an apocalyptic number.

It is an amenable number.

61131967972096 is an abundant number, since it is smaller than the sum of its proper divisors (81171401555104).

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

61131967972096 is an frugal number, since it uses more digits than its factorization.

61131967972096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696200474 (or 696200446 counting only the distinct ones).

The product of its (nonzero) digits is 46294416, while the sum is 67.

The spelling of 61131967972096 in words is "sixty-one trillion, one hundred thirty-one billion, nine hundred sixty-seven million, nine hundred seventy-two thousand, ninety-six".