18690233757419 has 8 divisors (see below), whose sum is σ = 21371226770400. Its totient is φ = 16011980649216.

The previous prime is 18690233757401. The next prime is 18690233757463. The reversal of 18690233757419 is 91475733209681.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18690233757419 is a prime.

It is a super-2 number, since 2×18690233757419² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18690233757479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684961574 + ... + 684988859.

It is an arithmetic number, because the mean of its divisors is an integer number (2671403346300).

It is a 1-persistent number, because it is pandigital, but 2⋅18690233757419 = 37380467514838 is not.

Almost surely, 2^{18690233757419} is an apocalyptic number.

18690233757419 is a deficient number, since it is larger than the sum of its proper divisors (2680993012981).

18690233757419 is a wasteful number, since it uses less digits than its factorization.

18690233757419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369952389.

The product of its (nonzero) digits is 68584320, while the sum is 65.

The spelling of 18690233757419 in words is "eighteen trillion, six hundred ninety billion, two hundred thirty-three million, seven hundred fifty-seven thousand, four hundred nineteen".