18914636620151 has 8 divisors (see below), whose sum is σ = 19052808942960. Its totient is φ = 18776465881408.

The previous prime is 18914636620147. The next prime is 18914636620171. The reversal of 18914636620151 is 15102663641981.

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

It is a cyclic number.

It is not a de Polignac number, because 18914636620151 - 2² = 18914636620147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18914636620093 and 18914636620102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18914636620111) 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, 35238140 + ... + 35770878.

It is an arithmetic number, because the mean of its divisors is an integer number (2381601117870).

Almost surely, 2^{18914636620151} is an apocalyptic number.

18914636620151 is a deficient number, since it is larger than the sum of its proper divisors (138172322809).

18914636620151 is a wasteful number, since it uses less digits than its factorization.

18914636620151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792033.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 18914636620151 in words is "eighteen trillion, nine hundred fourteen billion, six hundred thirty-six million, six hundred twenty thousand, one hundred fifty-one".