447667252746138 has 12 divisors (see below), whose sum is σ = 969945714283338. Its totient is φ = 149222417582040.

The previous prime is 447667252746137. The next prime is 447667252746227. The reversal of 447667252746138 is 831647252766744.

447667252746138 is a `hidden beast` number, since 4 + 4 + 7 + 6 + 6 + 7 + 2 + 527 + 4 + 61 + 38 = 666.

It can be written as a sum of positive squares in only one way, i.e., 357484367264049 + 90182885482089 = 18907257^2 + 9496467^2 .

It is a super-3 number, since 3×447667252746138³ (a number of 45 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (447667252746137) 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, 12435201465153 + ... + 12435201465188.

Almost surely, 2^{447667252746138} is an apocalyptic number.

447667252746138 is an abundant number, since it is smaller than the sum of its proper divisors (522278461537200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447667252746138 is a wasteful number, since it uses less digits than its factorization.

447667252746138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24870402930349 (or 24870402930346 counting only the distinct ones).

The product of its digits is 2275983360, while the sum is 72.

The spelling of 447667252746138 in words is "four hundred forty-seven trillion, six hundred sixty-seven billion, two hundred fifty-two million, seven hundred forty-six thousand, one hundred thirty-eight".