41699194561 has 4 divisors (see below), whose sum is σ = 41726046852. Its totient is φ = 41672342272.

The previous prime is 41699194553. The next prime is 41699194567. The reversal of 41699194561 is 16549199614.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11512217025 + 30186977536 = 107295^2 + 173744^2 .

It is a cyclic number.

It is not a de Polignac number, because 41699194561 - 2³ = 41699194553 is a prime.

It is a super-2 number, since 2×41699194561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41699194567) 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, 13423816 + ... + 13426921.

It is an arithmetic number, because the mean of its divisors is an integer number (10431511713).

Almost surely, 2^41699194561 is an apocalyptic number.

It is an amenable number.

41699194561 is a deficient number, since it is larger than the sum of its proper divisors (26852291).

41699194561 is a wasteful number, since it uses less digits than its factorization.

41699194561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26852290.

The product of its digits is 2099520, while the sum is 55.

The spelling of 41699194561 in words is "forty-one billion, six hundred ninety-nine million, one hundred ninety-four thousand, five hundred sixty-one".