78356845364 has 24 divisors (see below), whose sum is σ = 156783684288. Its totient is φ = 33566506560.

The previous prime is 78356845337. The next prime is 78356845397. The reversal of 78356845364 is 46354865387.

It is a super-2 number, since 2×78356845364² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 561017 + ... + 686624.

It is an arithmetic number, because the mean of its divisors is an integer number (6532653512).

Almost surely, 2^78356845364 is an apocalyptic number.

It is an amenable number.

78356845364 is an abundant number, since it is smaller than the sum of its proper divisors (78426838924).

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

78356845364 is a wasteful number, since it uses less digits than its factorization.

78356845364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249895 (or 1249893 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 59.

The spelling of 78356845364 in words is "seventy-eight billion, three hundred fifty-six million, eight hundred forty-five thousand, three hundred sixty-four".