77325760512 has 1152 divisors, whose sum is σ = 312315494400. Its totient is φ = 18393661440.

The previous prime is 77325760487. The next prime is 77325760553. The reversal of 77325760512 is 21506752377.

77325760512 is a `hidden beast` number, since 7 + 7 + 3 + 25 + 7 + 605 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 608864193 + ... + 608864319.

It is an arithmetic number, because the mean of its divisors is an integer number (271107200).

Almost surely, 2^77325760512 is an apocalyptic number.

77325760512 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77325760512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156157747200).

77325760512 is an abundant number, since it is smaller than the sum of its proper divisors (234989733888).

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

77325760512 is a wasteful number, since it uses less digits than its factorization.

77325760512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 77325760512 in words is "seventy-seven billion, three hundred twenty-five million, seven hundred sixty thousand, five hundred twelve".