18953310332519 has 8 divisors (see below), whose sum is σ = 19000990479408. Its totient is φ = 18905657290560.

The previous prime is 18953310332513. The next prime is 18953310332557. The reversal of 18953310332519 is 91523301335981.

It is a happy number.

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 18953310332519 - 2⁴⁰ = 17853798704743 is a prime.

It is a super-2 number, since 2×18953310332519² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18953310332513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5375597 + ... + 8173350.

It is an arithmetic number, because the mean of its divisors is an integer number (2375123809926).

Almost surely, 2^{18953310332519} is an apocalyptic number.

18953310332519 is a deficient number, since it is larger than the sum of its proper divisors (47680146889).

18953310332519 is a wasteful number, since it uses less digits than its factorization.

18953310332519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13552465.

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 18953310332519 in words is "eighteen trillion, nine hundred fifty-three billion, three hundred ten million, three hundred thirty-two thousand, five hundred nineteen".