78882507851 has 8 divisors (see below), whose sum is σ = 91991263200. Its totient is φ = 67613577864.

The previous prime is 78882507839. The next prime is 78882507859. The reversal of 78882507851 is 15870528887.

It is a happy number.

It is not a de Polignac number, because 78882507851 - 2⁶ = 78882507787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78882507859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114988736 + ... + 114989421.

It is an arithmetic number, because the mean of its divisors is an integer number (11498907900).

Almost surely, 2^78882507851 is an apocalyptic number.

78882507851 is a deficient number, since it is larger than the sum of its proper divisors (13108755349).

78882507851 is an equidigital number, since it uses as much as digits as its factorization.

78882507851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229978178 (or 229978164 counting only the distinct ones).

The product of its (nonzero) digits is 10035200, while the sum is 59.

The spelling of 78882507851 in words is "seventy-eight billion, eight hundred eighty-two million, five hundred seven thousand, eight hundred fifty-one".