18747488406232 has 64 divisors (see below), whose sum is σ = 36427273862400. Its totient is φ = 9039808227840.

The previous prime is 18747488406193. The next prime is 18747488406239. The reversal of 18747488406232 is 23260488474781.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18747488406239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36966438 + ... + 37470154.

It is an arithmetic number, because the mean of its divisors is an integer number (569176154100).

Almost surely, 2^{18747488406232} is an apocalyptic number.

It is an amenable number.

18747488406232 is a deficient number, since it is larger than the sum of its proper divisors (17679785456168).

18747488406232 is a wasteful number, since it uses less digits than its factorization.

18747488406232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505276 (or 505272 counting only the distinct ones).

The product of its (nonzero) digits is 115605504, while the sum is 64.

The spelling of 18747488406232 in words is "eighteen trillion, seven hundred forty-seven billion, four hundred eighty-eight million, four hundred six thousand, two hundred thirty-two".