764428791630 has 64 divisors (see below), whose sum is σ = 2103417934848. Its totient is φ = 174168334080.

The previous prime is 764428791617. The next prime is 764428791647. The reversal of 764428791630 is 36197824467.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5749186 + ... + 5880645.

It is an arithmetic number, because the mean of its divisors is an integer number (32865905232).

Almost surely, 2^764428791630 is an apocalyptic number.

764428791630 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

764428791630 is an abundant number, since it is smaller than the sum of its proper divisors (1338989143218).

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

764428791630 is a wasteful number, since it uses less digits than its factorization.

764428791630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11630161.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 764428791630 in words is "seven hundred sixty-four billion, four hundred twenty-eight million, seven hundred ninety-one thousand, six hundred thirty".