65389772824 has 8 divisors (see below), whose sum is σ = 122605824060. Its totient is φ = 32694886408.

The previous prime is 65389772807. The next prime is 65389772839. The reversal of 65389772824 is 42827798356.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4086860794 + ... + 4086860809.

Almost surely, 2^65389772824 is an apocalyptic number.

It is an amenable number.

65389772824 is a deficient number, since it is larger than the sum of its proper divisors (57216051236).

65389772824 is a wasteful number, since it uses less digits than its factorization.

65389772824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8173721609 (or 8173721605 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 61.

The spelling of 65389772824 in words is "sixty-five billion, three hundred eighty-nine million, seven hundred seventy-two thousand, eight hundred twenty-four".