30983989730 has 16 divisors (see below), whose sum is σ = 55788771384. Its totient is φ = 12389687040.

The previous prime is 30983989717. The next prime is 30983989781. The reversal of 30983989730 is 3798938903.

It can be written as a sum of positive squares in 4 ways, for example, as 25956754321 + 5027235409 = 161111^2 + 70903^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30983989730.

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, 455207 + ... + 518826.

Almost surely, 2^30983989730 is an apocalyptic number.

30983989730 is a deficient number, since it is larger than the sum of its proper divisors (24804781654).

30983989730 is a wasteful number, since it uses less digits than its factorization.

30983989730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977221.

The product of its (nonzero) digits is 8817984, while the sum is 59.

The spelling of 30983989730 in words is "thirty billion, nine hundred eighty-three million, nine hundred eighty-nine thousand, seven hundred thirty".