77091264884 has 24 divisors (see below), whose sum is σ = 137062611840. Its totient is φ = 37933698816.

The previous prime is 77091264883. The next prime is 77091264917. The reversal of 77091264884 is 48846219077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77091264883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300317 + ... + 494340.

It is an arithmetic number, because the mean of its divisors is an integer number (5710942160).

Almost surely, 2^77091264884 is an apocalyptic number.

It is an amenable number.

77091264884 is a deficient number, since it is larger than the sum of its proper divisors (59971346956).

77091264884 is a wasteful number, since it uses less digits than its factorization.

77091264884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795047 (or 795045 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 77091264884 in words is "seventy-seven billion, ninety-one million, two hundred sixty-four thousand, eight hundred eighty-four".