420712460423172 has 48 divisors (see below), whose sum is σ = 1092515349636480. Its totient is φ = 140008714376544.

The previous prime is 420712460423147. The next prime is 420712460423209. The reversal of 420712460423172 is 271324064217024.

420712460423172 is a `hidden beast` number, since 4 + 2 + 0 + 7 + 1 + 2 + 4 + 604 + 2 + 31 + 7 + 2 = 666.

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, 3177328368 + ... + 3177460775.

It is an arithmetic number, because the mean of its divisors is an integer number (22760736450760).

Almost surely, 2^{420712460423172} is an apocalyptic number.

It is an amenable number.

420712460423172 is an abundant number, since it is smaller than the sum of its proper divisors (671802889213308).

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

420712460423172 is a wasteful number, since it uses less digits than its factorization.

420712460423172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6354789769 (or 6354789761 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 420712460423172 in words is "four hundred twenty trillion, seven hundred twelve billion, four hundred sixty million, four hundred twenty-three thousand, one hundred seventy-two".