45202509361 has 4 divisors (see below), whose sum is σ = 45821721892. Its totient is φ = 44583296832.

The previous prime is 45202509311. The next prime is 45202509367. The reversal of 45202509361 is 16390520254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16390520254 = 2 ⋅8195260127.

It can be written as a sum of positive squares in 2 ways, for example, as 10072129600 + 35130379761 = 100360^2 + 187431^2 .

It is a cyclic number.

It is not a de Polignac number, because 45202509361 - 2¹⁵ = 45202476593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45202509361.

It is not an unprimeable number, because it can be changed into a prime (45202509367) 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, 309606156 + ... + 309606301.

It is an arithmetic number, because the mean of its divisors is an integer number (11455430473).

Almost surely, 2^45202509361 is an apocalyptic number.

It is an amenable number.

45202509361 is a deficient number, since it is larger than the sum of its proper divisors (619212531).

45202509361 is an equidigital number, since it uses as much as digits as its factorization.

45202509361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619212530.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 45202509361 in words is "forty-five billion, two hundred two million, five hundred nine thousand, three hundred sixty-one".