768131428 has 12 divisors (see below), whose sum is σ = 1347779440. Its totient is φ = 383051592.

The previous prime is 768131341. The next prime is 768131431. The reversal of 768131428 is 824131867.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251826 + ... + 254857.

Almost surely, 2^768131428 is an apocalyptic number.

It is an amenable number.

768131428 is a deficient number, since it is larger than the sum of its proper divisors (579648012).

768131428 is a wasteful number, since it uses less digits than its factorization.

768131428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507066 (or 507064 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 768131428 is about 27715.1840693869. The cubic root of 768131428 is about 915.8236297796.

The spelling of 768131428 in words is "seven hundred sixty-eight million, one hundred thirty-one thousand, four hundred twenty-eight".