972353869515251 has 8 divisors (see below), whose sum is σ = 998667622470864. Its totient is φ = 946041901751520.

The previous prime is 972353869515169. The next prime is 972353869515257. The reversal of 972353869515251 is 152515968353279.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972353869515251 is a prime.

It is a super-2 number, since 2×972353869515251² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972353869515257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445193840 + ... + 447372621.

It is an arithmetic number, because the mean of its divisors is an integer number (124833452808858).

Almost surely, 2^{972353869515251} is an apocalyptic number.

972353869515251 is a deficient number, since it is larger than the sum of its proper divisors (26313752955613).

972353869515251 is a wasteful number, since it uses less digits than its factorization.

972353869515251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892595941.

The product of its digits is 612360000, while the sum is 71.

The spelling of 972353869515251 in words is "nine hundred seventy-two trillion, three hundred fifty-three billion, eight hundred sixty-nine million, five hundred fifteen thousand, two hundred fifty-one".