972747405501 has 4 divisors (see below), whose sum is σ = 1296996540672. Its totient is φ = 648498270332.

The previous prime is 972747405367. The next prime is 972747405517. The reversal of 972747405501 is 105504747279.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 972747405501 - 2¹⁵ = 972747372733 is a prime.

It is a super-2 number, since 2×972747405501² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972747405521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162124567581 + ... + 162124567586.

It is an arithmetic number, because the mean of its divisors is an integer number (324249135168).

Almost surely, 2^972747405501 is an apocalyptic number.

It is an amenable number.

972747405501 is a deficient number, since it is larger than the sum of its proper divisors (324249135171).

972747405501 is a wasteful number, since it uses less digits than its factorization.

972747405501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324249135170.

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 972747405501 in words is "nine hundred seventy-two billion, seven hundred forty-seven million, four hundred five thousand, five hundred one".