447534122157 has 12 divisors (see below), whose sum is σ = 646701095040. Its totient is φ = 298234734408.

The previous prime is 447534122137. The next prime is 447534122201. The reversal of 447534122157 is 751221435744.

447534122157 is a `hidden beast` number, since 4 + 47 + 534 + 1 + 2 + 21 + 57 = 666.

It is not a de Polignac number, because 447534122157 - 2⁷ = 447534122029 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447534122137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10088893 + ... + 10133154.

It is an arithmetic number, because the mean of its divisors is an integer number (53891757920).

Almost surely, 2^447534122157 is an apocalyptic number.

It is an amenable number.

447534122157 is a deficient number, since it is larger than the sum of its proper divisors (199166972883).

447534122157 is a wasteful number, since it uses less digits than its factorization.

447534122157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20224512 (or 20224509 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The spelling of 447534122157 in words is "four hundred forty-seven billion, five hundred thirty-four million, one hundred twenty-two thousand, one hundred fifty-seven".