18401368275 has 108 divisors (see below), whose sum is σ = 34637753280. Its totient is φ = 9328608000.

The previous prime is 18401368199. The next prime is 18401368313. The reversal of 18401368275 is 57286310481.

18401368275 is a `hidden beast` number, since 18 + 4 + 0 + 1 + 368 + 275 = 666.

It is not a de Polignac number, because 18401368275 - 2¹⁰ = 18401367251 is a prime.

It is a super-2 number, since 2×18401368275² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18401368275.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 25953621 + ... + 25954329.

Almost surely, 2^18401368275 is an apocalyptic number.

18401368275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18401368275 is a deficient number, since it is larger than the sum of its proper divisors (16236385005).

18401368275 is a wasteful number, since it uses less digits than its factorization.

18401368275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 18401368275 in words is "eighteen billion, four hundred one million, three hundred sixty-eight thousand, two hundred seventy-five".