18393019998935 has 8 divisors (see below), whose sum is σ = 22203789412896. Its totient is φ = 14626305723040.

The previous prime is 18393019998923. The next prime is 18393019999099. The reversal of 18393019998935 is 53989991039381.

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

It is a de Polignac number, because none of the positive numbers 2^k-18393019998935 is a prime.

It is a super-2 number, since 2×18393019998935² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11013783596 + ... + 11013785265.

It is an arithmetic number, because the mean of its divisors is an integer number (2775473676612).

Almost surely, 2^{18393019998935} is an apocalyptic number.

18393019998935 is a deficient number, since it is larger than the sum of its proper divisors (3810769413961).

18393019998935 is a wasteful number, since it uses less digits than its factorization.

18393019998935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22027569033.

The product of its (nonzero) digits is 510183360, while the sum is 77.

The spelling of 18393019998935 in words is "eighteen trillion, three hundred ninety-three billion, nineteen million, nine hundred ninety-eight thousand, nine hundred thirty-five".