30420717860 has 48 divisors (see below), whose sum is σ = 68909131200. Its totient is φ = 11214059904.

The previous prime is 30420717841. The next prime is 30420717919. The reversal of 30420717860 is 6871702403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66431 + ... + 255449.

It is an arithmetic number, because the mean of its divisors is an integer number (1435606900).

Almost surely, 2^30420717860 is an apocalyptic number.

It is an amenable number.

30420717860 is an abundant number, since it is smaller than the sum of its proper divisors (38488413340).

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

30420717860 is a wasteful number, since it uses less digits than its factorization.

30420717860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189660 (or 189658 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 30420717860 in words is "thirty billion, four hundred twenty million, seven hundred seventeen thousand, eight hundred sixty".