761541636 has 12 divisors (see below), whose sum is σ = 1776930512. Its totient is φ = 253847208.

The previous prime is 761541623. The next prime is 761541647. The reversal of 761541636 is 636145167.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 761541594 and 761541603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31730890 + ... + 31730913.

Almost surely, 2^761541636 is an apocalyptic number.

It is an amenable number.

761541636 is an abundant number, since it is smaller than the sum of its proper divisors (1015388876).

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

761541636 is a wasteful number, since it uses less digits than its factorization.

761541636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63461810 (or 63461808 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 761541636 is about 27596.0438468995. The cubic root of 761541636 is about 913.1971572538.

The spelling of 761541636 in words is "seven hundred sixty-one million, five hundred forty-one thousand, six hundred thirty-six".