78091322364 has 72 divisors (see below), whose sum is σ = 215774832000. Its totient is φ = 23616554400.

The previous prime is 78091322357. The next prime is 78091322411. The reversal of 78091322364 is 46322319087.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9 + ... + 395199.

Almost surely, 2^78091322364 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 78091322364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107887416000).

78091322364 is an abundant number, since it is smaller than the sum of its proper divisors (137683509636).

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

78091322364 is a wasteful number, since it uses less digits than its factorization.

78091322364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395711 (or 395706 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 78091322364 in words is "seventy-eight billion, ninety-one million, three hundred twenty-two thousand, three hundred sixty-four".