78947627835 has 32 divisors (see below), whose sum is σ = 129422684160. Its totient is φ = 41072467968.

The previous prime is 78947627771. The next prime is 78947627839. The reversal of 78947627835 is 53872674987.

It is a happy number.

It is not a de Polignac number, because 78947627835 - 2⁶ = 78947627771 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (78947627839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416422 + ... + 575588.

It is an arithmetic number, because the mean of its divisors is an integer number (4044458880).

Almost surely, 2^78947627835 is an apocalyptic number.

78947627835 is a deficient number, since it is larger than the sum of its proper divisors (50475056325).

78947627835 is a wasteful number, since it uses less digits than its factorization.

78947627835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159987.

The product of its digits is 142248960, while the sum is 66.

The spelling of 78947627835 in words is "seventy-eight billion, nine hundred forty-seven million, six hundred twenty-seven thousand, eight hundred thirty-five".