77308687037376 has 224 divisors, whose sum is σ = 240708338496000. Its totient is φ = 24247043518464.

The previous prime is 77308687037369. The next prime is 77308687037389. The reversal of 77308687037376 is 67373078680377.

77308687037376 is a `hidden beast` number, since 7 + 7 + 30 + 86 + 87 + 0 + 373 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

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, 107127165 + ... + 107846403.

Almost surely, 2^{77308687037376} 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 77308687037376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120354169248000).

77308687037376 is an abundant number, since it is smaller than the sum of its proper divisors (163399651458624).

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

77308687037376 is a wasteful number, since it uses less digits than its factorization.

77308687037376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722936 (or 722920 counting only the distinct ones).

The product of its (nonzero) digits is 1045529856, while the sum is 72.

The spelling of 77308687037376 in words is "seventy-seven trillion, three hundred eight billion, six hundred eighty-seven million, thirty-seven thousand, three hundred seventy-six".