671211040740 has 24 divisors (see below), whose sum is σ = 1879390914240. Its totient is φ = 178989610848.

The previous prime is 671211040733. The next prime is 671211040771. The reversal of 671211040740 is 47040112176.

It is a super-2 number, since 2×671211040740² (a number of 24 digits) contains 22 as substring.

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, 5593425280 + ... + 5593425399.

It is an arithmetic number, because the mean of its divisors is an integer number (78307954760).

Almost surely, 2^671211040740 is an apocalyptic number.

671211040740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671211040740 is an abundant number, since it is smaller than the sum of its proper divisors (1208179873500).

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

671211040740 is a wasteful number, since it uses less digits than its factorization.

671211040740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11186850691 (or 11186850689 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The spelling of 671211040740 in words is "six hundred seventy-one billion, two hundred eleven million, forty thousand, seven hundred forty".