30187963420 has 24 divisors (see below), whose sum is σ = 66731288400. Its totient is φ = 11439649152.

The previous prime is 30187963417. The next prime is 30187963433. The reversal of 30187963420 is 2436978103.

It is a super-2 number, since 2×30187963420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39720625 + ... + 39721384.

It is an arithmetic number, because the mean of its divisors is an integer number (2780470350).

Almost surely, 2^30187963420 is an apocalyptic number.

It is an amenable number.

30187963420 is an abundant number, since it is smaller than the sum of its proper divisors (36543324980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30187963420 is a wasteful number, since it uses less digits than its factorization.

30187963420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79442037 (or 79442035 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 30187963420 in words is "thirty billion, one hundred eighty-seven million, nine hundred sixty-three thousand, four hundred twenty".