77401104336 has 80 divisors (see below), whose sum is σ = 222407104320. Its totient is φ = 25772814720.

The previous prime is 77401104331. The next prime is 77401104353. The reversal of 77401104336 is 63340110477.

77401104336 is a `hidden beast` number, since 77 + 40 + 110 + 433 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 77401104336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77401104331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311311 + ... + 501713.

It is an arithmetic number, because the mean of its divisors is an integer number (2780088804).

Almost surely, 2^77401104336 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 77401104336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111203552160).

77401104336 is an abundant number, since it is smaller than the sum of its proper divisors (145005999984).

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

77401104336 is a wasteful number, since it uses less digits than its factorization.

77401104336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191361 (or 191349 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 77401104336 in words is "seventy-seven billion, four hundred one million, one hundred four thousand, three hundred thirty-six".