77477363676 has 192 divisors, whose sum is σ = 212973035520. Its totient is φ = 24323328000.

The previous prime is 77477363659. The next prime is 77477363681. The reversal of 77477363676 is 67636377477.

77477363676 is a `hidden beast` number, since 77 + 477 + 36 + 3 + 67 + 6 = 666.

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 63 ways as a sum of consecutive naturals, for example, 19808161 + ... + 19812071.

It is an arithmetic number, because the mean of its divisors is an integer number (1109234560).

Almost surely, 2^77477363676 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 77477363676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106486517760).

77477363676 is an abundant number, since it is smaller than the sum of its proper divisors (135495671844).

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

77477363676 is a wasteful number, since it uses less digits than its factorization.

77477363676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113 (or 4105 counting only the distinct ones).

The product of its digits is 130691232, while the sum is 63.

The spelling of 77477363676 in words is "seventy-seven billion, four hundred seventy-seven million, three hundred sixty-three thousand, six hundred seventy-six".