31364431642050 has 48 divisors (see below), whose sum is σ = 83767158975360. Its totient is φ = 7720475480640.

The previous prime is 31364431642039. The next prime is 31364431642073. The reversal of 31364431642050 is 5024613446313.

It is a junction number, because it is equal to n+sod(n) for n = 31364431641993 and 31364431642011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8042160010 + ... + 8042163909.

It is an arithmetic number, because the mean of its divisors is an integer number (1745149145320).

Almost surely, 2^{31364431642050} is an apocalyptic number.

31364431642050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31364431642050 is an abundant number, since it is smaller than the sum of its proper divisors (52402727333310).

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

31364431642050 is a wasteful number, since it uses less digits than its factorization.

31364431642050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16084323947 (or 16084323942 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 31364431642050 in words is "thirty-one trillion, three hundred sixty-four billion, four hundred thirty-one million, six hundred forty-two thousand, fifty".