31400644930 has 32 divisors (see below), whose sum is σ = 58367232000. Its totient is φ = 12150336960.

The previous prime is 31400644889. The next prime is 31400644973. The reversal of 31400644930 is 3944600413.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833767 + ... + 870613.

It is an arithmetic number, because the mean of its divisors is an integer number (1823976000).

Almost surely, 2^31400644930 is an apocalyptic number.

31400644930 is a deficient number, since it is larger than the sum of its proper divisors (26966587070).

31400644930 is a wasteful number, since it uses less digits than its factorization.

31400644930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39634.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 31400644930 in words is "thirty-one billion, four hundred million, six hundred forty-four thousand, nine hundred thirty".