77083836721400 has 48 divisors (see below), whose sum is σ = 187012090839600. Its totient is φ = 29492946222080.

The previous prime is 77083836721387. The next prime is 77083836721403. The reversal of 77083836721400 is 412763838077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77083836721403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8378673305 + ... + 8378682504.

It is an arithmetic number, because the mean of its divisors is an integer number (3896085225825).

Almost surely, 2^{77083836721400} is an apocalyptic number.

It is an amenable number.

77083836721400 is an abundant number, since it is smaller than the sum of its proper divisors (109928254118200).

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

77083836721400 is a wasteful number, since it uses less digits than its factorization.

77083836721400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16757355848 (or 16757355839 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 56.

The spelling of 77083836721400 in words is "seventy-seven trillion, eighty-three billion, eight hundred thirty-six million, seven hundred twenty-one thousand, four hundred".