761643820536 has 32 divisors (see below), whose sum is σ = 1904183199360. Its totient is φ = 253871453792.

The previous prime is 761643820517. The next prime is 761643820621. The reversal of 761643820536 is 635028346167.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33631 + ... + 1234673.

It is an arithmetic number, because the mean of its divisors is an integer number (59505724980).

Almost surely, 2^761643820536 is an apocalyptic number.

It is an amenable number.

761643820536 is an abundant number, since it is smaller than the sum of its proper divisors (1142539378824).

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

761643820536 is a wasteful number, since it uses less digits than its factorization.

761643820536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227475 (or 1227471 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 761643820536 in words is "seven hundred sixty-one billion, six hundred forty-three million, eight hundred twenty thousand, five hundred thirty-six".