77928150390 has 16 divisors (see below), whose sum is σ = 187027561008. Its totient is φ = 20780840096.

The previous prime is 77928150353. The next prime is 77928150403. The reversal of 77928150390 is 9305182977.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1298802477 + ... + 1298802536.

It is an arithmetic number, because the mean of its divisors is an integer number (11689222563).

Almost surely, 2^77928150390 is an apocalyptic number.

77928150390 is an abundant number, since it is smaller than the sum of its proper divisors (109099410618).

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

77928150390 is a wasteful number, since it uses less digits than its factorization.

77928150390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597605023.

The product of its (nonzero) digits is 952560, while the sum is 51.

The spelling of 77928150390 in words is "seventy-seven billion, nine hundred twenty-eight million, one hundred fifty thousand, three hundred ninety".