671594851813822 has 16 divisors (see below), whose sum is σ = 1010248192942560. Its totient is φ = 334845458145792.

The previous prime is 671594851813813. The next prime is 671594851813909. The reversal of 671594851813822 is 228318158495176.

It is a congruent number.

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, 563759503 + ... + 564949525.

It is an arithmetic number, because the mean of its divisors is an integer number (63140512058910).

Almost surely, 2^{671594851813822} is an apocalyptic number.

671594851813822 is a deficient number, since it is larger than the sum of its proper divisors (338653341128738).

671594851813822 is a wasteful number, since it uses less digits than its factorization.

671594851813822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989747.

The product of its digits is 232243200, while the sum is 70.

The spelling of 671594851813822 in words is "six hundred seventy-one trillion, five hundred ninety-four billion, eight hundred fifty-one million, eight hundred thirteen thousand, eight hundred twenty-two".