30728426284 has 18 divisors (see below), whose sum is σ = 54808527620. Its totient is φ = 15074316816.

The previous prime is 30728426243. The next prime is 30728426293. The reversal of 30728426284 is 48262482703.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1356174 + ... + 1378645.

Almost surely, 2^30728426284 is an apocalyptic number.

It is an amenable number.

30728426284 is a deficient number, since it is larger than the sum of its proper divisors (24080101336).

30728426284 is a wasteful number, since it uses less digits than its factorization.

30728426284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734929 (or 2734874 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 46.

The spelling of 30728426284 in words is "thirty billion, seven hundred twenty-eight million, four hundred twenty-six thousand, two hundred eighty-four".