77750485320 has 128 divisors (see below), whose sum is σ = 251021255040. Its totient is φ = 19193917440.

The previous prime is 77750485289. The next prime is 77750485331. The reversal of 77750485320 is 2358405777.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 77750485320.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187962 + ... + 436841.

It is an arithmetic number, because the mean of its divisors is an integer number (1961103555).

Almost surely, 2^77750485320 is an apocalyptic number.

It is an amenable number.

77750485320 is an abundant number, since it is smaller than the sum of its proper divisors (173270769720).

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

77750485320 is a wasteful number, since it uses less digits than its factorization.

77750485320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624895 (or 624891 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 77750485320 in words is "seventy-seven billion, seven hundred fifty million, four hundred eighty-five thousand, three hundred twenty".