78152281348735 has 16 divisors (see below), whose sum is σ = 102309659200512. Its totient is φ = 56837346042400.

The previous prime is 78152281348727. The next prime is 78152281348781. The reversal of 78152281348735 is 53784318225187.

It is not a de Polignac number, because 78152281348735 - 2³ = 78152281348727 is a prime.

It is a super-2 number, since 2×78152281348735² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3774871 + ... + 13059640.

It is an arithmetic number, because the mean of its divisors is an integer number (6394353700032).

Almost surely, 2^{78152281348735} is an apocalyptic number.

78152281348735 is a deficient number, since it is larger than the sum of its proper divisors (24157377851777).

78152281348735 is a wasteful number, since it uses less digits than its factorization.

78152281348735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16918934.

The product of its digits is 90316800, while the sum is 64.

The spelling of 78152281348735 in words is "seventy-eight trillion, one hundred fifty-two billion, two hundred eighty-one million, three hundred forty-eight thousand, seven hundred thirty-five".