29997512145953 has 8 divisors (see below), whose sum is σ = 32982232396800. Its totient is φ = 27055737510480.

The previous prime is 29997512145943. The next prime is 29997512145967. The reversal of 29997512145953 is 35954121579992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29997512145953 - 2⁸ = 29997512145697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29997512145943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10736402378 + ... + 10736405171.

It is an arithmetic number, because the mean of its divisors is an integer number (4122779049600).

Almost surely, 2^{29997512145953} is an apocalyptic number.

It is an amenable number.

29997512145953 is a deficient number, since it is larger than the sum of its proper divisors (2984720250847).

29997512145953 is a wasteful number, since it uses less digits than its factorization.

29997512145953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21472807687.

The product of its digits is 275562000, while the sum is 71.

The spelling of 29997512145953 in words is "twenty-nine trillion, nine hundred ninety-seven billion, five hundred twelve million, one hundred forty-five thousand, nine hundred fifty-three".