18636420750134 has 8 divisors (see below), whose sum is σ = 30495961227528. Its totient is φ = 8471100340960.

The previous prime is 18636420750131. The next prime is 18636420750217. The reversal of 18636420750134 is 43105702463681.

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

It is a super-2 number, since 2×18636420750134² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18636420750131) 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, 423555017027 + ... + 423555017070.

It is an arithmetic number, because the mean of its divisors is an integer number (3811995153441).

Almost surely, 2^{18636420750134} is an apocalyptic number.

18636420750134 is a deficient number, since it is larger than the sum of its proper divisors (11859540477394).

18636420750134 is a wasteful number, since it uses less digits than its factorization.

18636420750134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847110034110.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 18636420750134 in words is "eighteen trillion, six hundred thirty-six billion, four hundred twenty million, seven hundred fifty thousand, one hundred thirty-four".