770991937632 has 144 divisors (see below), whose sum is σ = 2573446311072. Its totient is φ = 214329784320.

The previous prime is 770991937631. The next prime is 770991937679. The reversal of 770991937632 is 236739199077.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 770991937632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770991937631) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5093469 + ... + 5242652.

It is an arithmetic number, because the mean of its divisors is an integer number (17871154938).

Almost surely, 2^770991937632 is an apocalyptic number.

770991937632 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

770991937632 is an abundant number, since it is smaller than the sum of its proper divisors (1802454373440).

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

770991937632 is a wasteful number, since it uses less digits than its factorization.

770991937632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10336181 (or 10336170 counting only the distinct ones).

The product of its (nonzero) digits is 27005076, while the sum is 63.

The spelling of 770991937632 in words is "seven hundred seventy billion, nine hundred ninety-one million, nine hundred thirty-seven thousand, six hundred thirty-two".