31445743142884 has 12 divisors (see below), whose sum is σ = 62891486285824. Its totient is φ = 13476747061224.

The previous prime is 31445743142861. The next prime is 31445743142899. The reversal of 31445743142884 is 48824134754413.

31445743142884 is an admirable number.

It is a super-2 number, since 2×31445743142884² (a number of 28 digits) contains 22 as substring.

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, 561531127524 + ... + 561531127579.

Almost surely, 2^{31445743142884} is an apocalyptic number.

It is an amenable number.

31445743142884 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.

31445743142884 is a wasteful number, since it uses less digits than its factorization.

31445743142884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123062255114 (or 1123062255112 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 58.

The spelling of 31445743142884 in words is "thirty-one trillion, four hundred forty-five billion, seven hundred forty-three million, one hundred forty-two thousand, eight hundred eighty-four".