18047142552 has 64 divisors (see below), whose sum is σ = 47982211200. Its totient is φ = 5640330240.

The previous prime is 18047142551. The next prime is 18047142577. The reversal of 18047142552 is 25524174081.

It is a self number, because there is not a number n which added to its sum of digits gives 18047142552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18047142551) 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, 159774 + ... + 248237.

It is an arithmetic number, because the mean of its divisors is an integer number (749722050).

Almost surely, 2^18047142552 is an apocalyptic number.

18047142552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18047142552 is an abundant number, since it is smaller than the sum of its proper divisors (29935068648).

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

18047142552 is a wasteful number, since it uses less digits than its factorization.

18047142552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408136 (or 408132 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 18047142552 in words is "eighteen billion, forty-seven million, one hundred forty-two thousand, five hundred fifty-two".