31420646362064 has 40 divisors (see below), whose sum is σ = 61029236899680. Its totient is φ = 15671173795200.

The previous prime is 31420646362051. The next prime is 31420646362187. The reversal of 31420646362064 is 46026364602413.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64524779 + ... + 65009909.

It is an arithmetic number, because the mean of its divisors is an integer number (1525730922492).

Almost surely, 2^{31420646362064} is an apocalyptic number.

It is an amenable number.

31420646362064 is a deficient number, since it is larger than the sum of its proper divisors (29608590537616).

31420646362064 is a wasteful number, since it uses less digits than its factorization.

31420646362064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495219 (or 495213 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 47.

The spelling of 31420646362064 in words is "thirty-one trillion, four hundred twenty billion, six hundred forty-six million, three hundred sixty-two thousand, sixty-four".