30018890189019 has 16 divisors (see below), whose sum is σ = 41766594089472. Its totient is φ = 19141939109568.

The previous prime is 30018890188981. The next prime is 30018890189033. The reversal of 30018890189019 is 91098109881003.

It is a de Polignac number, because none of the positive numbers 2^k-30018890189019 is a prime.

It is a super-2 number, since 2×30018890189019² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30018890189019.

It is not an unprimeable number, because it can be changed into a prime (30018890189069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3690874 + ... + 8582559.

It is an arithmetic number, because the mean of its divisors is an integer number (2610412130592).

Almost surely, 2^{30018890189019} is an apocalyptic number.

30018890189019 is a deficient number, since it is larger than the sum of its proper divisors (11747703900453).

30018890189019 is a wasteful number, since it uses less digits than its factorization.

30018890189019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12308906.

The product of its (nonzero) digits is 1119744, while the sum is 57.

The spelling of 30018890189019 in words is "thirty trillion, eighteen billion, eight hundred ninety million, one hundred eighty-nine thousand, nineteen".