30187740012 has 24 divisors (see below), whose sum is σ = 70730340912. Its totient is φ = 10020825600.

The previous prime is 30187740007. The next prime is 30187740029. The reversal of 30187740012 is 21004778103.

It is a happy number.

It is a super-2 number, since 2×30187740012² (a number of 22 digits) contains 22 as substring.

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, 5216289 + ... + 5222072.

It is an arithmetic number, because the mean of its divisors is an integer number (2947097538).

Almost surely, 2^30187740012 is an apocalyptic number.

It is an amenable number.

30187740012 is an abundant number, since it is smaller than the sum of its proper divisors (40542600900).

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

30187740012 is a wasteful number, since it uses less digits than its factorization.

30187740012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438609 (or 10438607 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The spelling of 30187740012 in words is "thirty billion, one hundred eighty-seven million, seven hundred forty thousand, twelve".