40445455177 has 4 divisors (see below), whose sum is σ = 40763923456. Its totient is φ = 40126986900.

The previous prime is 40445455147. The next prime is 40445455187. The reversal of 40445455177 is 77155454404.

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 a de Polignac number, because none of the positive numbers 2^k-40445455177 is a prime.

It is a super-2 number, since 2×40445455177² (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 (40445455117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159233949 + ... + 159234202.

It is an arithmetic number, because the mean of its divisors is an integer number (10190980864).

Almost surely, 2^40445455177 is an apocalyptic number.

It is an amenable number.

40445455177 is a deficient number, since it is larger than the sum of its proper divisors (318468279).

40445455177 is a wasteful number, since it uses less digits than its factorization.

40445455177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318468278.

The product of its (nonzero) digits is 1568000, while the sum is 46.

The spelling of 40445455177 in words is "forty billion, four hundred forty-five million, four hundred fifty-five thousand, one hundred seventy-seven".