78125300715 has 64 divisors (see below), whose sum is σ = 162620669952. Its totient is φ = 31056009600.

The previous prime is 78125300711. The next prime is 78125300741. The reversal of 78125300715 is 51700352187.

It is not a de Polignac number, because 78125300715 - 2² = 78125300711 is a prime.

It is a super-2 number, since 2×78125300715² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78125300711) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1443891 + ... + 1497020.

It is an arithmetic number, because the mean of its divisors is an integer number (2540947968).

Almost surely, 2^78125300715 is an apocalyptic number.

78125300715 is an abundant number, since it is smaller than the sum of its proper divisors (84495369237).

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

78125300715 is a wasteful number, since it uses less digits than its factorization.

78125300715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940960.

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 78125300715 in words is "seventy-eight billion, one hundred twenty-five million, three hundred thousand, seven hundred fifteen".