78877825844367 has 32 divisors (see below), whose sum is σ = 114843617982720. Its totient is φ = 47757982245120.

The previous prime is 78877825844329. The next prime is 78877825844407. The reversal of 78877825844367 is 76344852877887.

It is not a de Polignac number, because 78877825844367 - 2⁶ = 78877825844303 is a prime.

It is a super-2 number, since 2×78877825844367² (a number of 29 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 78877825844367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78877825844267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1441637803 + ... + 1441692515.

It is an arithmetic number, because the mean of its divisors is an integer number (3588863061960).

Almost surely, 2^{78877825844367} is an apocalyptic number.

78877825844367 is a deficient number, since it is larger than the sum of its proper divisors (35965792138353).

78877825844367 is a wasteful number, since it uses less digits than its factorization.

78877825844367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96663.

The product of its digits is 28323348480, while the sum is 84.

The spelling of 78877825844367 in words is "seventy-eight trillion, eight hundred seventy-seven billion, eight hundred twenty-five million, eight hundred forty-four thousand, three hundred sixty-seven".