45109250491 has 16 divisors (see below), whose sum is σ = 49306096224. Its totient is φ = 41101369344.

The previous prime is 45109250477. The next prime is 45109250497. The reversal of 45109250491 is 19405290154.

It is a cyclic number.

It is not a de Polignac number, because 45109250491 - 2²¹ = 45107153339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45109250497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190446 + ... + 355651.

It is an arithmetic number, because the mean of its divisors is an integer number (3081631014).

Almost surely, 2^45109250491 is an apocalyptic number.

45109250491 is a deficient number, since it is larger than the sum of its proper divisors (4196845733).

45109250491 is a wasteful number, since it uses less digits than its factorization.

45109250491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546270.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 45109250491 in words is "forty-five billion, one hundred nine million, two hundred fifty thousand, four hundred ninety-one".