104505315921 has 6 divisors (see below), whose sum is σ = 150952123010. Its totient is φ = 69670210608.

The previous prime is 104505315911. The next prime is 104505315923. The reversal of 104505315921 is 129513505401.

It is a happy number.

104505315921 is a `hidden beast` number, since 1 + 0 + 4 + 50 + 531 + 59 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 93201373521 + 11303942400 = 305289^2 + 106320^2 .

It is not a de Polignac number, because 104505315921 - 2¹¹ = 104505313873 is a prime.

It is a super-2 number, since 2×104505315921² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104505315923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5805850876 + ... + 5805850893.

Almost surely, 2^104505315921 is an apocalyptic number.

It is an amenable number.

104505315921 is a deficient number, since it is larger than the sum of its proper divisors (46446807089).

104505315921 is a wasteful number, since it uses less digits than its factorization.

104505315921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11611701775 (or 11611701772 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 104505315921 in words is "one hundred four billion, five hundred five million, three hundred fifteen thousand, nine hundred twenty-one".