641763598236 has 48 divisors (see below), whose sum is σ = 1547504544768. Its totient is φ = 206785958400.

The previous prime is 641763598183. The next prime is 641763598277. The reversal of 641763598236 is 632895367146.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 641763598236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648405 + ... + 1305356.

It is an arithmetic number, because the mean of its divisors is an integer number (32239678016).

Almost surely, 2^641763598236 is an apocalyptic number.

It is an amenable number.

641763598236 is an abundant number, since it is smaller than the sum of its proper divisors (905740946532).

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

641763598236 is a wasteful number, since it uses less digits than its factorization.

641763598236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954682 (or 1954680 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 60.

The spelling of 641763598236 in words is "six hundred forty-one billion, seven hundred sixty-three million, five hundred ninety-eight thousand, two hundred thirty-six".