29997512145954 has 12 divisors (see below), whose sum is σ = 64994609649606. Its totient is φ = 9999170715312.

The previous prime is 29997512145943. The next prime is 29997512145967. The reversal of 29997512145954 is 45954121579992.

It is a happy number.

29997512145954 is a `hidden beast` number, since 2 + 9 + 9 + 9 + 7 + 5 + 1 + 21 + 4 + 595 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29984133753729 + 13378392225 = 5475777^2 + 115665^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 833264226259 + ... + 833264226294.

Almost surely, 2^{29997512145954} is an apocalyptic number.

29997512145954 is an abundant number, since it is smaller than the sum of its proper divisors (34997097503652).

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

29997512145954 is a wasteful number, since it uses less digits than its factorization.

29997512145954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666528452561 (or 1666528452558 counting only the distinct ones).

The product of its digits is 367416000, while the sum is 72.

The spelling of 29997512145954 in words is "twenty-nine trillion, nine hundred ninety-seven billion, five hundred twelve million, one hundred forty-five thousand, nine hundred fifty-four".