65872431832 has 8 divisors (see below), whose sum is σ = 123510809700. Its totient is φ = 32936215912.

The previous prime is 65872431811. The next prime is 65872431851. The reversal of 65872431832 is 23813427856.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×65872431832² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4117026982 + ... + 4117026997.

Almost surely, 2^65872431832 is an apocalyptic number.

It is an amenable number.

65872431832 is a deficient number, since it is larger than the sum of its proper divisors (57638377868).

65872431832 is a wasteful number, since it uses less digits than its factorization.

65872431832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8234053985 (or 8234053981 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The spelling of 65872431832 in words is "sixty-five billion, eight hundred seventy-two million, four hundred thirty-one thousand, eight hundred thirty-two".