45544551023 has 4 divisors (see below), whose sum is σ = 45673572768. Its totient is φ = 45415529280.

The previous prime is 45544551001. The next prime is 45544551043. The reversal of 45544551023 is 32015544554.

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 45544551023 - 2¹⁶ = 45544485487 is a prime.

It is a super-2 number, since 2×45544551023² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45544551043) 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, 64510343 + ... + 64511048.

It is an arithmetic number, because the mean of its divisors is an integer number (11418393192).

Almost surely, 2^45544551023 is an apocalyptic number.

45544551023 is a deficient number, since it is larger than the sum of its proper divisors (129021745).

45544551023 is a wasteful number, since it uses less digits than its factorization.

45544551023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129021744.

The product of its (nonzero) digits is 240000, while the sum is 38.

The spelling of 45544551023 in words is "forty-five billion, five hundred forty-four million, five hundred fifty-one thousand, twenty-three".