77701975296 has 144 divisors (see below), whose sum is σ = 235409932800. Its totient is φ = 22522255360.

The previous prime is 77701975249. The next prime is 77701975303. The reversal of 77701975296 is 69257910777.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5646 + ... + 394253.

It is an arithmetic number, because the mean of its divisors is an integer number (1634791200).

Almost surely, 2^77701975296 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 77701975296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117704966400).

77701975296 is an abundant number, since it is smaller than the sum of its proper divisors (157707957504).

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

77701975296 is a wasteful number, since it uses less digits than its factorization.

77701975296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399952 (or 399938 counting only the distinct ones).

The product of its (nonzero) digits is 11668860, while the sum is 60.

The spelling of 77701975296 in words is "seventy-seven billion, seven hundred one million, nine hundred seventy-five thousand, two hundred ninety-six".