18368537001 has 8 divisors (see below), whose sum is σ = 24506899680. Its totient is φ = 12237932832.

The previous prime is 18368536999. The next prime is 18368537027. The reversal of 18368537001 is 10073586381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18368537001 - 2¹ = 18368536999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18368537051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1934100 + ... + 1943573.

It is an arithmetic number, because the mean of its divisors is an integer number (3063362460).

Almost surely, 2^18368537001 is an apocalyptic number.

It is an amenable number.

18368537001 is a deficient number, since it is larger than the sum of its proper divisors (6138362679).

18368537001 is a wasteful number, since it uses less digits than its factorization.

18368537001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879255.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 18368537001 in words is "eighteen billion, three hundred sixty-eight million, five hundred thirty-seven thousand, one".