31604505330650 has 48 divisors (see below), whose sum is σ = 67315711768704. Its totient is φ = 10814287932480.

The previous prime is 31604505330613. The next prime is 31604505330659. The reversal of 31604505330650 is 5603350540613.

It is a junction number, because it is equal to n+sod(n) for n = 31604505330598 and 31604505330607.

It is not an unprimeable number, because it can be changed into a prime (31604505330659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89583977 + ... + 89936076.

It is an arithmetic number, because the mean of its divisors is an integer number (1402410661848).

Almost surely, 2^{31604505330650} is an apocalyptic number.

31604505330650 is an abundant number, since it is smaller than the sum of its proper divisors (35711206438054).

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

31604505330650 is a wasteful number, since it uses less digits than its factorization.

31604505330650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179520575 (or 179520570 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 41.

The spelling of 31604505330650 in words is "thirty-one trillion, six hundred four billion, five hundred five million, three hundred thirty thousand, six hundred fifty".