104647394879 has 4 divisors (see below), whose sum is σ = 104661914280. Its totient is φ = 104632875480.

The previous prime is 104647394821. The next prime is 104647394947. The reversal of 104647394879 is 978493746401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104647394879 is a prime.

It is a super-2 number, since 2×104647394879² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104647396879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7248884 + ... + 7263305.

It is an arithmetic number, because the mean of its divisors is an integer number (26165478570).

Almost surely, 2^104647394879 is an apocalyptic number.

104647394879 is a deficient number, since it is larger than the sum of its proper divisors (14519401).

104647394879 is an equidigital number, since it uses as much as digits as its factorization.

104647394879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14519400.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 104647394879 in words is "one hundred four billion, six hundred forty-seven million, three hundred ninety-four thousand, eight hundred seventy-nine".