77092689856 has 112 divisors (see below), whose sum is σ = 190013010880. Its totient is φ = 30218158080.

The previous prime is 77092689841. The next prime is 77092689901. The reversal of 77092689856 is 65898629077.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 77092689791 and 77092689800.

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 15 ways as a sum of consecutive naturals, for example, 574096 + ... + 695536.

It is an arithmetic number, because the mean of its divisors is an integer number (1696544740).

Almost surely, 2^77092689856 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 77092689856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95006505440).

77092689856 is an abundant number, since it is smaller than the sum of its proper divisors (112920321024).

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

77092689856 is a wasteful number, since it uses less digits than its factorization.

77092689856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121582 (or 121572 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 67.

The spelling of 77092689856 in words is "seventy-seven billion, ninety-two million, six hundred eighty-nine thousand, eight hundred fifty-six".