45624127661 has 4 divisors (see below), whose sum is σ = 52141860192. Its totient is φ = 39106395132.

The previous prime is 45624127657. The next prime is 45624127693. The reversal of 45624127661 is 16672142654.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45624127661 - 2² = 45624127657 is a prime.

It is a super-2 number, since 2×45624127661² (a number of 22 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 (45624127061) 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, 3258866255 + ... + 3258866268.

It is an arithmetic number, because the mean of its divisors is an integer number (13035465048).

Almost surely, 2^45624127661 is an apocalyptic number.

It is an amenable number.

45624127661 is a deficient number, since it is larger than the sum of its proper divisors (6517732531).

45624127661 is an equidigital number, since it uses as much as digits as its factorization.

45624127661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517732530.

The product of its digits is 483840, while the sum is 44.

The spelling of 45624127661 in words is "forty-five billion, six hundred twenty-four million, one hundred twenty-seven thousand, six hundred sixty-one".