30212470918 has 16 divisors (see below), whose sum is σ = 53578766880. Its totient is φ = 12501711936.

The previous prime is 30212470901. The next prime is 30212470927. The reversal of 30212470918 is 81907421203.

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, 37207071 + ... + 37207882.

It is an arithmetic number, because the mean of its divisors is an integer number (3348672930).

Almost surely, 2^30212470918 is an apocalyptic number.

30212470918 is a deficient number, since it is larger than the sum of its proper divisors (23366295962).

30212470918 is a wasteful number, since it uses less digits than its factorization.

30212470918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74414991.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 30212470918 in words is "thirty billion, two hundred twelve million, four hundred seventy thousand, nine hundred eighteen".