768828756157 has 32 divisors (see below), whose sum is σ = 963096496128. Its totient is φ = 596245320000.

The previous prime is 768828756149. The next prime is 768828756173. The reversal of 768828756157 is 751657828867.

It is not a de Polignac number, because 768828756157 - 2³ = 768828756149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768828753157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15804682 + ... + 15853252.

It is an arithmetic number, because the mean of its divisors is an integer number (30096765504).

Almost surely, 2^768828756157 is an apocalyptic number.

768828756157 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

768828756157 is a deficient number, since it is larger than the sum of its proper divisors (194267739971).

768828756157 is a wasteful number, since it uses less digits than its factorization.

768828756157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49561.

The product of its digits is 316108800, while the sum is 70.

The spelling of 768828756157 in words is "seven hundred sixty-eight billion, eight hundred twenty-eight million, seven hundred fifty-six thousand, one hundred fifty-seven".