18693525332 has 12 divisors (see below), whose sum is σ = 33050924340. Its totient is φ = 9250404096.

The previous prime is 18693525313. The next prime is 18693525341. The reversal of 18693525332 is 23352539681.

It can be written as a sum of positive squares in 2 ways, for example, as 5595638416 + 13097886916 = 74804^2 + 114446^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24089207 + ... + 24089982.

It is an arithmetic number, because the mean of its divisors is an integer number (2754243695).

Almost surely, 2^18693525332 is an apocalyptic number.

It is an amenable number.

18693525332 is a deficient number, since it is larger than the sum of its proper divisors (14357399008).

18693525332 is a wasteful number, since it uses less digits than its factorization.

18693525332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48179290 (or 48179288 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 47.

The spelling of 18693525332 in words is "eighteen billion, six hundred ninety-three million, five hundred twenty-five thousand, three hundred thirty-two".