78316254976 has 144 divisors (see below), whose sum is σ = 168702651936. Its totient is φ = 36151492608.

The previous prime is 78316254941. The next prime is 78316254997. The reversal of 78316254976 is 67945261387.

It is a super-2 number, since 2×78316254976² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78316254976.

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, 98263410 + ... + 98264206.

It is an arithmetic number, because the mean of its divisors is an integer number (1171546194).

Almost surely, 2^78316254976 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 78316254976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84351325968).

78316254976 is an abundant number, since it is smaller than the sum of its proper divisors (90386396960).

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

78316254976 is a wasteful number, since it uses less digits than its factorization.

78316254976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1220 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 58.

The spelling of 78316254976 in words is "seventy-eight billion, three hundred sixteen million, two hundred fifty-four thousand, nine hundred seventy-six".