29997922688361 has 64 divisors (see below), whose sum is σ = 47711217254400. Its totient is φ = 18592069579200.

The previous prime is 29997922688329. The next prime is 29997922688399. The reversal of 29997922688361 is 16388622979992.

29997922688361 is a `hidden beast` number, since 2 + 9 + 9 + 97 + 92 + 2 + 6 + 88 + 361 = 666.

It is not a de Polignac number, because 29997922688361 - 2⁵ = 29997922688329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29997922687361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3684105 + ... + 8577206.

It is an arithmetic number, because the mean of its divisors is an integer number (745487769600).

Almost surely, 2^{29997922688361} is an apocalyptic number.

It is an amenable number.

29997922688361 is a deficient number, since it is larger than the sum of its proper divisors (17713294566039).

29997922688361 is a wasteful number, since it uses less digits than its factorization.

29997922688361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12261467 (or 12261461 counting only the distinct ones).

The product of its digits is 2539579392, while the sum is 81.

The spelling of 29997922688361 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred twenty-two million, six hundred eighty-eight thousand, three hundred sixty-one".