31419164220 has 24 divisors (see below), whose sum is σ = 87973659984. Its totient is φ = 8378443776.

The previous prime is 31419164177. The next prime is 31419164233. The reversal of 31419164220 is 2246191413.

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, 261826309 + ... + 261826428.

It is an arithmetic number, because the mean of its divisors is an integer number (3665569166).

Almost surely, 2^31419164220 is an apocalyptic number.

31419164220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31419164220 is an abundant number, since it is smaller than the sum of its proper divisors (56554495764).

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

31419164220 is a wasteful number, since it uses less digits than its factorization.

31419164220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523652749 (or 523652747 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 31419164220 in words is "thirty-one billion, four hundred nineteen million, one hundred sixty-four thousand, two hundred twenty".