671512122470 has 128 divisors (see below), whose sum is σ = 1505240064000. Its totient is φ = 215121916800.

The previous prime is 671512122467. The next prime is 671512122493. The reversal of 671512122470 is 74221215176.

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 63 ways as a sum of consecutive naturals, for example, 2974685 + ... + 3192455.

It is an arithmetic number, because the mean of its divisors is an integer number (11759688000).

Almost surely, 2^671512122470 is an apocalyptic number.

671512122470 is an abundant number, since it is smaller than the sum of its proper divisors (833727941530).

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

671512122470 is a wasteful number, since it uses less digits than its factorization.

671512122470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217859 (or 217845 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 671512122470 in words is "six hundred seventy-one billion, five hundred twelve million, one hundred twenty-two thousand, four hundred seventy".