77857488183168 has 192 divisors, whose sum is σ = 230310894883680. Its totient is φ = 25236459601920.

The previous prime is 77857488183121. The next prime is 77857488183269. The reversal of 77857488183168 is 86138188475877.

77857488183168 is a `hidden beast` number, since 7 + 7 + 8 + 57 + 488 + 1 + 83 + 1 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 549021 + ... + 12490652.

Almost surely, 2^{77857488183168} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77857488183168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115155447441840).

77857488183168 is an abundant number, since it is smaller than the sum of its proper divisors (152453406700512).

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

77857488183168 is a wasteful number, since it uses less digits than its factorization.

77857488183168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13039837 (or 13039822 counting only the distinct ones).

The product of its digits is 4046192640, while the sum is 81.

The spelling of 77857488183168 in words is "seventy-seven trillion, eight hundred fifty-seven billion, four hundred eighty-eight million, one hundred eighty-three thousand, one hundred sixty-eight".