30146678472 has 64 divisors (see below), whose sum is σ = 79357291200. Its totient is φ = 9517132800.

The previous prime is 30146678447. The next prime is 30146678479. The reversal of 30146678472 is 27487664103.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30146678479) 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, 1907788 + ... + 1923524.

It is an arithmetic number, because the mean of its divisors is an integer number (1239957675).

Almost surely, 2^30146678472 is an apocalyptic number.

It is an amenable number.

30146678472 is an abundant number, since it is smaller than the sum of its proper divisors (49210612728).

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

30146678472 is a wasteful number, since it uses less digits than its factorization.

30146678472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19966 (or 19962 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 30146678472 in words is "thirty billion, one hundred forty-six million, six hundred seventy-eight thousand, four hundred seventy-two".