77477316390 has 96 divisors (see below), whose sum is σ = 202739565600. Its totient is φ = 20527729152.

The previous prime is 77477316359. The next prime is 77477316457. The reversal of 77477316390 is 9361377477.

77477316390 is a `hidden beast` number, since 7 + 7 + 477 + 3 + 163 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15192061 + ... + 15197159.

It is an arithmetic number, because the mean of its divisors is an integer number (2111870475).

Almost surely, 2^77477316390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77477316390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101369782800).

77477316390 is an abundant number, since it is smaller than the sum of its proper divisors (125262249210).

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

77477316390 is a wasteful number, since it uses less digits than its factorization.

77477316390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166 (or 6163 counting only the distinct ones).

The product of its (nonzero) digits is 4667544, while the sum is 54.

The spelling of 77477316390 in words is "seventy-seven billion, four hundred seventy-seven million, three hundred sixteen thousand, three hundred ninety".