45241892018 has 16 divisors (see below), whose sum is σ = 70427254680. Its totient is φ = 21771125376.

The previous prime is 45241891993. The next prime is 45241892053. The reversal of 45241892018 is 81029814254.

It can be written as a sum of positive squares in 4 ways, for example, as 37811969209 + 7429922809 = 194453^2 + 86197^2 .

It is a super-2 number, since 2×45241892018² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45241892018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1227905 + ... + 1264212.

Almost surely, 2^45241892018 is an apocalyptic number.

45241892018 is a deficient number, since it is larger than the sum of its proper divisors (25185362662).

45241892018 is a wasteful number, since it uses less digits than its factorization.

45241892018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492461.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 45241892018 in words is "forty-five billion, two hundred forty-one million, eight hundred ninety-two thousand, eighteen".