18010505752 has 8 divisors (see below), whose sum is σ = 33769698300. Its totient is φ = 9005252872.

The previous prime is 18010505743. The next prime is 18010505759. The reversal of 18010505752 is 25750501081.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18010505759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125656602 + ... + 1125656617.

Almost surely, 2^18010505752 is an apocalyptic number.

It is an amenable number.

18010505752 is a deficient number, since it is larger than the sum of its proper divisors (15759192548).

18010505752 is a wasteful number, since it uses less digits than its factorization.

18010505752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251313225 (or 2251313221 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 34.

The spelling of 18010505752 in words is "eighteen billion, ten million, five hundred five thousand, seven hundred fifty-two".