45194131377 has 6 divisors (see below), whose sum is σ = 65280412002. Its totient is φ = 30129420912.

The previous prime is 45194131363. The next prime is 45194131387. The reversal of 45194131377 is 77313149154.

It can be written as a sum of positive squares in only one way, i.e., 37033538481 + 8160592896 = 192441^2 + 90336^2 .

It is not a de Polignac number, because 45194131377 - 2¹⁹ = 45193607089 is a prime.

It is a super-2 number, since 2×45194131377² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45194131387) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2510785068 + ... + 2510785085.

It is an arithmetic number, because the mean of its divisors is an integer number (10880068667).

Almost surely, 2^45194131377 is an apocalyptic number.

It is an amenable number.

45194131377 is a deficient number, since it is larger than the sum of its proper divisors (20086280625).

45194131377 is a wasteful number, since it uses less digits than its factorization.

45194131377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5021570159 (or 5021570156 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The spelling of 45194131377 in words is "forty-five billion, one hundred ninety-four million, one hundred thirty-one thousand, three hundred seventy-seven".