45157178177 has 4 divisors (see below), whose sum is σ = 46613861376. Its totient is φ = 43700494980.

The previous prime is 45157178173. The next prime is 45157178203. The reversal of 45157178177 is 77187175154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45157178177 - 2² = 45157178173 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45157178173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728341553 + ... + 728341614.

It is an arithmetic number, because the mean of its divisors is an integer number (11653465344).

Almost surely, 2^45157178177 is an apocalyptic number.

It is an amenable number.

45157178177 is a deficient number, since it is larger than the sum of its proper divisors (1456683199).

45157178177 is a wasteful number, since it uses less digits than its factorization.

45157178177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456683198.

The product of its digits is 1920800, while the sum is 53.

The spelling of 45157178177 in words is "forty-five billion, one hundred fifty-seven million, one hundred seventy-eight thousand, one hundred seventy-seven".