45642138377 has 16 divisors (see below), whose sum is σ = 52416091008. Its totient is φ = 39337562880.

The previous prime is 45642138361. The next prime is 45642138379. The reversal of 45642138377 is 77383124654.

It is not a de Polignac number, because 45642138377 - 2⁴ = 45642138361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45642138379) 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, 769658 + ... + 826835.

It is an arithmetic number, because the mean of its divisors is an integer number (3276005688).

Almost surely, 2^45642138377 is an apocalyptic number.

It is an amenable number.

45642138377 is a deficient number, since it is larger than the sum of its proper divisors (6773952631).

45642138377 is a wasteful number, since it uses less digits than its factorization.

45642138377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596640.

The product of its digits is 3386880, while the sum is 50.

The spelling of 45642138377 in words is "forty-five billion, six hundred forty-two million, one hundred thirty-eight thousand, three hundred seventy-seven".