65319874484 has 6 divisors (see below), whose sum is σ = 114309780354. Its totient is φ = 32659937240.

The previous prime is 65319874463. The next prime is 65319874513. The reversal of 65319874484 is 48447891356.

It can be written as a sum of positive squares in only one way, i.e., 55305869584 + 10014004900 = 235172^2 + 100070^2 .

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, 8164984307 + ... + 8164984314.

It is an arithmetic number, because the mean of its divisors is an integer number (19051630059).

Almost surely, 2^65319874484 is an apocalyptic number.

It is an amenable number.

65319874484 is a deficient number, since it is larger than the sum of its proper divisors (48989905870).

65319874484 is a wasteful number, since it uses less digits than its factorization.

65319874484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16329968625 (or 16329968623 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 59.

The spelling of 65319874484 in words is "sixty-five billion, three hundred nineteen million, eight hundred seventy-four thousand, four hundred eighty-four".