671813004634 has 16 divisors (see below), whose sum is σ = 1013222292480. Its totient is φ = 334073028240.

The previous prime is 671813004601. The next prime is 671813004637. The reversal of 671813004634 is 436400318176.

It is not an unprimeable number, because it can be changed into a prime (671813004637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1531672 + ... + 1920844.

It is an arithmetic number, because the mean of its divisors is an integer number (63326393280).

Almost surely, 2^671813004634 is an apocalyptic number.

671813004634 is a deficient number, since it is larger than the sum of its proper divisors (341409287846).

671813004634 is a wasteful number, since it uses less digits than its factorization.

671813004634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393885.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 671813004634 in words is "six hundred seventy-one billion, eight hundred thirteen million, four thousand, six hundred thirty-four".