18532276402647 has 24 divisors (see below), whose sum is σ = 28791765900912. Its totient is φ = 10572251760000.

The previous prime is 18532276402613. The next prime is 18532276402657. The reversal of 18532276402647 is 74620467223581.

It is a happy number.

It is not a de Polignac number, because 18532276402647 - 2¹² = 18532276398551 is a prime.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18532276402657) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 104795104 + ... + 104971797.

It is an arithmetic number, because the mean of its divisors is an integer number (1199656912538).

Almost surely, 2^{18532276402647} is an apocalyptic number.

18532276402647 is a deficient number, since it is larger than the sum of its proper divisors (10259489498265).

18532276402647 is a wasteful number, since it uses less digits than its factorization.

18532276402647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209767519 (or 209767512 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 57.

The spelling of 18532276402647 in words is "eighteen trillion, five hundred thirty-two billion, two hundred seventy-six million, four hundred two thousand, six hundred forty-seven".