78815153379 has 16 divisors (see below), whose sum is σ = 107331886080. Its totient is φ = 51421118400.

The previous prime is 78815153371. The next prime is 78815153383. The reversal of 78815153379 is 97335151887.

It is not a de Polignac number, because 78815153379 - 2³ = 78815153371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78815153371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3004482 + ... + 3030600.

It is an arithmetic number, because the mean of its divisors is an integer number (6708242880).

Almost surely, 2^78815153379 is an apocalyptic number.

78815153379 is a deficient number, since it is larger than the sum of its proper divisors (28516732701).

78815153379 is a wasteful number, since it uses less digits than its factorization.

78815153379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47570.

The product of its digits is 6350400, while the sum is 57.

The spelling of 78815153379 in words is "seventy-eight billion, eight hundred fifteen million, one hundred fifty-three thousand, three hundred seventy-nine".