45890723491 has 4 divisors (see below), whose sum is σ = 48590177832. Its totient is φ = 43191269152.

The previous prime is 45890723479. The next prime is 45890723497. The reversal of 45890723491 is 19432709854.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45890723491 - 2⁷ = 45890723363 is a prime.

It is a super-3 number, since 3×45890723491³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45890723497) 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, 1349727145 + ... + 1349727178.

It is an arithmetic number, because the mean of its divisors is an integer number (12147544458).

Almost surely, 2^45890723491 is an apocalyptic number.

45890723491 is a deficient number, since it is larger than the sum of its proper divisors (2699454341).

45890723491 is a wasteful number, since it uses less digits than its factorization.

45890723491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699454340.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 45890723491 in words is "forty-five billion, eight hundred ninety million, seven hundred twenty-three thousand, four hundred ninety-one".