972125884639 has 16 divisors (see below), whose sum is σ = 1266842783808. Its totient is φ = 723910159872.

The previous prime is 972125884637. The next prime is 972125884651. The reversal of 972125884639 is 936488521279.

It is a cyclic number.

It is not a de Polignac number, because 972125884639 - 2¹ = 972125884637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972125884637) 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, 314195572 + ... + 314198665.

It is an arithmetic number, because the mean of its divisors is an integer number (79177673988).

Almost surely, 2^972125884639 is an apocalyptic number.

972125884639 is a deficient number, since it is larger than the sum of its proper divisors (294716899169).

972125884639 is a wasteful number, since it uses less digits than its factorization.

972125884639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628394274.

The product of its digits is 52254720, while the sum is 64.

The spelling of 972125884639 in words is "nine hundred seventy-two billion, one hundred twenty-five million, eight hundred eighty-four thousand, six hundred thirty-nine".