447137990451 has 32 divisors (see below), whose sum is σ = 673426094400. Its totient is φ = 293144279040.

The previous prime is 447137990447. The next prime is 447137990479. The reversal of 447137990451 is 154099731744.

447137990451 is a `hidden beast` number, since 4 + 4 + 71 + 37 + 9 + 90 + 451 = 666.

It is not a de Polignac number, because 447137990451 - 2² = 447137990447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447137990401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8718355 + ... + 8769491.

It is an arithmetic number, because the mean of its divisors is an integer number (21044565450).

Almost surely, 2^447137990451 is an apocalyptic number.

447137990451 is a deficient number, since it is larger than the sum of its proper divisors (226288103949).

447137990451 is a wasteful number, since it uses less digits than its factorization.

447137990451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56516 (or 56510 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 447137990451 in words is "four hundred forty-seven billion, one hundred thirty-seven million, nine hundred ninety thousand, four hundred fifty-one".