104506085016779 has 4 divisors (see below), whose sum is σ = 110006405280840. Its totient is φ = 99005764752720.

The previous prime is 104506085016701. The next prime is 104506085016799. The reversal of 104506085016779 is 977610580605401.

It is a happy number.

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-104506085016779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104506085016799) 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, 2750160132002 + ... + 2750160132039.

It is an arithmetic number, because the mean of its divisors is an integer number (27501601320210).

Almost surely, 2^{104506085016779} is an apocalyptic number.

104506085016779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

104506085016779 is a deficient number, since it is larger than the sum of its proper divisors (5500320264061).

104506085016779 is an equidigital number, since it uses as much as digits as its factorization.

104506085016779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500320264060.

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 104506085016779 in words is "one hundred four trillion, five hundred six billion, eighty-five million, sixteen thousand, seven hundred seventy-nine".