641714964828 has 72 divisors (see below), whose sum is σ = 1784280700944. Its totient is φ = 178875244800.

The previous prime is 641714964809. The next prime is 641714964833. The reversal of 641714964828 is 828469417146.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13285063 + ... + 13333278.

It is an arithmetic number, because the mean of its divisors is an integer number (24781676402).

Almost surely, 2^641714964828 is an apocalyptic number.

It is an amenable number.

641714964828 is an abundant number, since it is smaller than the sum of its proper divisors (1142565736116).

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

641714964828 is a wasteful number, since it uses less digits than its factorization.

641714964828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26618403 (or 26618394 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 60.

The spelling of 641714964828 in words is "six hundred forty-one billion, seven hundred fourteen million, nine hundred sixty-four thousand, eight hundred twenty-eight".