671054631572420 has 48 divisors (see below), whose sum is σ = 1409822311484160. Its totient is φ = 268306146357504.

The previous prime is 671054631572387. The next prime is 671054631572569. The reversal of 671054631572420 is 24275136450176.

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, 445021496 + ... + 446526864.

It is an arithmetic number, because the mean of its divisors is an integer number (29371298155920).

Almost surely, 2^{671054631572420} is an apocalyptic number.

It is an amenable number.

671054631572420 is an abundant number, since it is smaller than the sum of its proper divisors (738767679911740).

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

671054631572420 is a wasteful number, since it uses less digits than its factorization.

671054631572420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514972 (or 1514970 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 53.

The spelling of 671054631572420 in words is "six hundred seventy-one trillion, fifty-four billion, six hundred thirty-one million, five hundred seventy-two thousand, four hundred twenty".