78847711901 has 32 divisors (see below), whose sum is σ = 95983999488. Its totient is φ = 63310832640.

The previous prime is 78847711897. The next prime is 78847711913. The reversal of 78847711901 is 10911774887.

It is a cyclic number.

It is not a de Polignac number, because 78847711901 - 2² = 78847711897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78847711301) 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 31 ways as a sum of consecutive naturals, for example, 2271065 + ... + 2305521.

It is an arithmetic number, because the mean of its divisors is an integer number (2999499984).

Almost surely, 2^78847711901 is an apocalyptic number.

It is an amenable number.

78847711901 is a deficient number, since it is larger than the sum of its proper divisors (17136287587).

78847711901 is a wasteful number, since it uses less digits than its factorization.

78847711901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34781.

The product of its (nonzero) digits is 790272, while the sum is 53.

The spelling of 78847711901 in words is "seventy-eight billion, eight hundred forty-seven million, seven hundred eleven thousand, nine hundred one".