45185883261 has 32 divisors (see below), whose sum is σ = 64799025408. Its totient is φ = 27905633280.

The previous prime is 45185883257. The next prime is 45185883271. The reversal of 45185883261 is 16238858154.

It is not a de Polignac number, because 45185883261 - 2² = 45185883257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45185883221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2209495 + ... + 2229851.

It is an arithmetic number, because the mean of its divisors is an integer number (2024969544).

Almost surely, 2^45185883261 is an apocalyptic number.

It is an amenable number.

45185883261 is a deficient number, since it is larger than the sum of its proper divisors (19613142147).

45185883261 is a wasteful number, since it uses less digits than its factorization.

45185883261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21061.

The product of its digits is 1843200, while the sum is 51.

The spelling of 45185883261 in words is "forty-five billion, one hundred eighty-five million, eight hundred eighty-three thousand, two hundred sixty-one".