65039513390 has 64 divisors (see below), whose sum is σ = 124945514496. Its totient is φ = 24321128832.

The previous prime is 65039513381. The next prime is 65039513401. The reversal of 65039513390 is 9331593056.

65039513390 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 31 ways as a sum of consecutive naturals, for example, 3195827 + ... + 3216113.

It is an arithmetic number, because the mean of its divisors is an integer number (1952273664).

Almost surely, 2^65039513390 is an apocalyptic number.

65039513390 is a deficient number, since it is larger than the sum of its proper divisors (59906001106).

65039513390 is a wasteful number, since it uses less digits than its factorization.

65039513390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20633.

The product of its (nonzero) digits is 328050, while the sum is 44.

The spelling of 65039513390 in words is "sixty-five billion, thirty-nine million, five hundred thirteen thousand, three hundred ninety".