641393754004 has 12 divisors (see below), whose sum is σ = 1122444757728. Its totient is φ = 320695251800.

The previous prime is 641393753989. The next prime is 641393754047. The reversal of 641393754004 is 400457393146.

It is a super-2 number, since 2×641393754004² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112499 + ... + 1587589.

It is an arithmetic number, because the mean of its divisors is an integer number (93537063144).

Almost surely, 2^641393754004 is an apocalyptic number.

It is an amenable number.

641393754004 is a deficient number, since it is larger than the sum of its proper divisors (481051003724).

641393754004 is a wasteful number, since it uses less digits than its factorization.

641393754004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812606 (or 812604 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 641393754004 in words is "six hundred forty-one billion, three hundred ninety-three million, seven hundred fifty-four thousand, four".