104645919651 has 16 divisors (see below), whose sum is σ = 171726637824. Its totient is φ = 55197847584.

The previous prime is 104645919607. The next prime is 104645919701. The reversal of 104645919651 is 156919546401.

It is a happy number.

It is not a de Polignac number, because 104645919651 - 2²⁷ = 104511701923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104645919594 and 104645919603.

It is not an unprimeable number, because it can be changed into a prime (104645919251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191658921 + ... + 191659466.

It is an arithmetic number, because the mean of its divisors is an integer number (10732914864).

Almost surely, 2^104645919651 is an apocalyptic number.

104645919651 is a deficient number, since it is larger than the sum of its proper divisors (67080718173).

104645919651 is a wasteful number, since it uses less digits than its factorization.

104645919651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383318410.

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 104645919651 in words is "one hundred four billion, six hundred forty-five million, nine hundred nineteen thousand, six hundred fifty-one".