31550219738044 has 12 divisors (see below), whose sum is σ = 63100439476144. Its totient is φ = 13521522744864.

The previous prime is 31550219738039. The next prime is 31550219738071. The reversal of 31550219738044 is 44083791205513.

31550219738044 is an admirable number.

It is a super-2 number, since 2×31550219738044² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31550219737982 and 31550219738000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563396781009 + ... + 563396781064.

Almost surely, 2^{31550219738044} is an apocalyptic number.

It is an amenable number.

31550219738044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31550219738044 is a wasteful number, since it uses less digits than its factorization.

31550219738044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126793562084 (or 1126793562082 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 31550219738044 in words is "thirty-one trillion, five hundred fifty billion, two hundred nineteen million, seven hundred thirty-eight thousand, forty-four".