671284772592 has 160 divisors (see below), whose sum is σ = 2031764815872. Its totient is φ = 186999988992.

The previous prime is 671284772569. The next prime is 671284772611. The reversal of 671284772592 is 295277482176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4072483 + ... + 4234109.

Almost surely, 2^671284772592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671284772592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015882407936).

671284772592 is an abundant number, since it is smaller than the sum of its proper divisors (1360480043280).

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

671284772592 is a wasteful number, since it uses less digits than its factorization.

671284772592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161955 (or 161949 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 60.

The spelling of 671284772592 in words is "six hundred seventy-one billion, two hundred eighty-four million, seven hundred seventy-two thousand, five hundred ninety-two".