29993198508972 has 24 divisors (see below), whose sum is σ = 77760144282800. Its totient is φ = 9997732836288.

The previous prime is 29993198508929. The next prime is 29993198508983. The reversal of 29993198508972 is 27980589139992.

29993198508972 is a `hidden beast` number, since 2 + 9 + 9 + 9 + 3 + 19 + 8 + 508 + 97 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 29993198508891 and 29993198508900.

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, 138857400397 + ... + 138857400612.

Almost surely, 2^{29993198508972} is an apocalyptic number.

It is an amenable number.

29993198508972 is an abundant number, since it is smaller than the sum of its proper divisors (47766945773828).

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

29993198508972 is a wasteful number, since it uses less digits than its factorization.

29993198508972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277714801022 (or 277714801014 counting only the distinct ones).

The product of its (nonzero) digits is 1587237120, while the sum is 81.

The spelling of 29993198508972 in words is "twenty-nine trillion, nine hundred ninety-three billion, one hundred ninety-eight million, five hundred eight thousand, nine hundred seventy-two".