29997974695761 has 16 divisors (see below), whose sum is σ = 44510559795520. Its totient is φ = 19967547686400.

The previous prime is 29997974695757. The next prime is 29997974695813. The reversal of 29997974695761 is 16759647979992.

29997974695761 is a `hidden beast` number, since 2 + 9 + 9 + 9 + 7 + 97 + 469 + 57 + 6 + 1 = 666.

It is not a de Polignac number, because 29997974695761 - 2² = 29997974695757 is a prime.

It is a super-2 number, since 2×29997974695761² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29997974695751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 863929840 + ... + 863964561.

It is an arithmetic number, because the mean of its divisors is an integer number (2781909987220).

Almost surely, 2^{29997974695761} is an apocalyptic number.

It is an amenable number.

29997974695761 is a deficient number, since it is larger than the sum of its proper divisors (14512585099759).

29997974695761 is a wasteful number, since it uses less digits than its factorization.

29997974695761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727895053 (or 1727895047 counting only the distinct ones).

The product of its digits is 29165482080, while the sum is 90.

The spelling of 29997974695761 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred seventy-four million, six hundred ninety-five thousand, seven hundred sixty-one".