65972460189 has 4 divisors (see below), whose sum is σ = 87963280256. Its totient is φ = 43981640124.

The previous prime is 65972460181. The next prime is 65972460217. The reversal of 65972460189 is 98106427956.

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 not a de Polignac number, because 65972460189 - 2³ = 65972460181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65972460181) 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, 10995410029 + ... + 10995410034.

It is an arithmetic number, because the mean of its divisors is an integer number (21990820064).

Almost surely, 2^65972460189 is an apocalyptic number.

It is an amenable number.

65972460189 is a deficient number, since it is larger than the sum of its proper divisors (21990820067).

65972460189 is a wasteful number, since it uses less digits than its factorization.

65972460189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21990820066.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 65972460189 in words is "sixty-five billion, nine hundred seventy-two million, four hundred sixty thousand, one hundred eighty-nine".