77635140436 has 12 divisors (see below), whose sum is σ = 155270280928. Its totient is φ = 33272203032.

The previous prime is 77635140419. The next prime is 77635140487. The reversal of 77635140436 is 63404153677.

77635140436 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386341766 + ... + 1386341821.

Almost surely, 2^77635140436 is an apocalyptic number.

It is an amenable number.

77635140436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

77635140436 is a wasteful number, since it uses less digits than its factorization.

77635140436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772683598 (or 2772683596 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 77635140436 in words is "seventy-seven billion, six hundred thirty-five million, one hundred forty thousand, four hundred thirty-six".