31467207642 has 64 divisors (see below), whose sum is σ = 68083196160. Its totient is φ = 9638383104.

The previous prime is 31467207641. The next prime is 31467207763. The reversal of 31467207642 is 24670276413.

It is a junction number, because it is equal to n+sod(n) for n = 31467207594 and 31467207603.

It is not an unprimeable number, because it can be changed into a prime (31467207641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24149163 + ... + 24150465.

It is an arithmetic number, because the mean of its divisors is an integer number (1063799940).

Almost surely, 2^31467207642 is an apocalyptic number.

31467207642 is an abundant number, since it is smaller than the sum of its proper divisors (36615988518).

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

31467207642 is a wasteful number, since it uses less digits than its factorization.

31467207642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487.

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 31467207642 in words is "thirty-one billion, four hundred sixty-seven million, two hundred seven thousand, six hundred forty-two".