18682890912001 has 4 divisors (see below), whose sum is σ = 18684189521712. Its totient is φ = 18681592302292.

The previous prime is 18682890911959. The next prime is 18682890912011. The reversal of 18682890912001 is 10021909828681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18682890912001 - 2¹⁹ = 18682890387713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18682890912011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649283275 + ... + 649312048.

It is an arithmetic number, because the mean of its divisors is an integer number (4671047380428).

Almost surely, 2^{18682890912001} is an apocalyptic number.

It is an amenable number.

18682890912001 is a deficient number, since it is larger than the sum of its proper divisors (1298609711).

18682890912001 is a wasteful number, since it uses less digits than its factorization.

18682890912001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298609710.

The product of its (nonzero) digits is 995328, while the sum is 55.

The spelling of 18682890912001 in words is "eighteen trillion, six hundred eighty-two billion, eight hundred ninety million, nine hundred twelve thousand, one".