30663906490 has 96 divisors (see below), whose sum is σ = 65018588544. Its totient is φ = 10380988800.

The previous prime is 30663906479. The next prime is 30663906491. The reversal of 30663906490 is 9460936603.

It is a super-2 number, since 2×30663906490² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30663906490.

It is not an unprimeable number, because it can be changed into a prime (30663906491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23568840 + ... + 23570140.

It is an arithmetic number, because the mean of its divisors is an integer number (677276964).

Almost surely, 2^30663906490 is an apocalyptic number.

30663906490 is an abundant number, since it is smaller than the sum of its proper divisors (34354682054).

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

30663906490 is a wasteful number, since it uses less digits than its factorization.

30663906490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 46.

The spelling of 30663906490 in words is "thirty billion, six hundred sixty-three million, nine hundred six thousand, four hundred ninety".