29971772213456 has 40 divisors (see below), whose sum is σ = 58122124541184. Its totient is φ = 14972518483200.

The previous prime is 29971772213441. The next prime is 29971772213497. The reversal of 29971772213456 is 65431227717992.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 29971772213392 and 29971772213401.

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, 116485460 + ... + 116742476.

Almost surely, 2^{29971772213456} is an apocalyptic number.

It is an amenable number.

29971772213456 is a deficient number, since it is larger than the sum of its proper divisors (28150352327728).

29971772213456 is a wasteful number, since it uses less digits than its factorization.

29971772213456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263499 (or 263493 counting only the distinct ones).

The product of its digits is 80015040, while the sum is 65.

The spelling of 29971772213456 in words is "twenty-nine trillion, nine hundred seventy-one billion, seven hundred seventy-two million, two hundred thirteen thousand, four hundred fifty-six".