45923497581 has 16 divisors (see below), whose sum is σ = 66076863104. Its totient is φ = 28202572224.

The previous prime is 45923497531. The next prime is 45923497637. The reversal of 45923497581 is 18579432954.

45923497581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45923497581 - 2⁷ = 45923497453 is a prime.

It is a super-2 number, since 2×45923497581² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45923497531) 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, 1189966 + ... + 1227951.

It is an arithmetic number, because the mean of its divisors is an integer number (4129803944).

Almost surely, 2^45923497581 is an apocalyptic number.

It is an amenable number.

45923497581 is a deficient number, since it is larger than the sum of its proper divisors (20153365523).

45923497581 is a wasteful number, since it uses less digits than its factorization.

45923497581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418420.

The product of its digits is 10886400, while the sum is 57.

The spelling of 45923497581 in words is "forty-five billion, nine hundred twenty-three million, four hundred ninety-seven thousand, five hundred eighty-one".