18448240472572 has 24 divisors (see below), whose sum is σ = 33122159708400. Its totient is φ = 8987533368576.

The previous prime is 18448240472569. The next prime is 18448240472653. The reversal of 18448240472572 is 27527404284481.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345860547 + ... + 345913882.

It is an arithmetic number, because the mean of its divisors is an integer number (1380089987850).

Almost surely, 2^{18448240472572} is an apocalyptic number.

It is an amenable number.

18448240472572 is a deficient number, since it is larger than the sum of its proper divisors (14673919235828).

18448240472572 is a wasteful number, since it uses less digits than its factorization.

18448240472572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691774605 (or 691774603 counting only the distinct ones).

The product of its (nonzero) digits is 32112640, while the sum is 58.

The spelling of 18448240472572 in words is "eighteen trillion, four hundred forty-eight billion, two hundred forty million, four hundred seventy-two thousand, five hundred seventy-two".