65513989374 has 32 divisors (see below), whose sum is σ = 132074240256. Its totient is φ = 21663837120.

The previous prime is 65513989367. The next prime is 65513989393. The reversal of 65513989374 is 47398931556.

65513989374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1215669 + ... + 1268415.

It is an arithmetic number, because the mean of its divisors is an integer number (4127320008).

Almost surely, 2^65513989374 is an apocalyptic number.

65513989374 is an abundant number, since it is smaller than the sum of its proper divisors (66560250882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65513989374 is a wasteful number, since it uses less digits than its factorization.

65513989374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54400.

The product of its digits is 24494400, while the sum is 60.

The spelling of 65513989374 in words is "sixty-five billion, five hundred thirteen million, nine hundred eighty-nine thousand, three hundred seventy-four".