45144358187 has 4 divisors (see below), whose sum is σ = 46245440136. Its totient is φ = 44043276240.

The previous prime is 45144358183. The next prime is 45144358229. The reversal of 45144358187 is 78185344154.

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 45144358187 - 2² = 45144358183 is a prime.

It is a super-2 number, since 2×45144358187² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45144358183) 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, 550540913 + ... + 550540994.

It is an arithmetic number, because the mean of its divisors is an integer number (11561360034).

Almost surely, 2^45144358187 is an apocalyptic number.

45144358187 is a deficient number, since it is larger than the sum of its proper divisors (1101081949).

45144358187 is a wasteful number, since it uses less digits than its factorization.

45144358187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101081948.

The product of its digits is 2150400, while the sum is 50.

The spelling of 45144358187 in words is "forty-five billion, one hundred forty-four million, three hundred fifty-eight thousand, one hundred eighty-seven".