78248056500615 has 16 divisors (see below), whose sum is σ = 125392205378016. Its totient is φ = 41667191808000.

The previous prime is 78248056500613. The next prime is 78248056500701. The reversal of 78248056500615 is 51600565084287.

It is not a de Polignac number, because 78248056500615 - 2¹ = 78248056500613 is a prime.

It is a super-2 number, since 2×78248056500615² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78248056500613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4069052086 + ... + 4069071315.

It is an arithmetic number, because the mean of its divisors is an integer number (7837012836126).

Almost surely, 2^{78248056500615} is an apocalyptic number.

78248056500615 is a deficient number, since it is larger than the sum of its proper divisors (47144148877401).

78248056500615 is a wasteful number, since it uses less digits than its factorization.

78248056500615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8138124050.

The product of its (nonzero) digits is 16128000, while the sum is 57.

The spelling of 78248056500615 in words is "seventy-eight trillion, two hundred forty-eight billion, fifty-six million, five hundred thousand, six hundred fifteen".