30688994668 has 48 divisors (see below), whose sum is σ = 57044736000. Its totient is φ = 14414880128.

The previous prime is 30688994663. The next prime is 30688994671. The reversal of 30688994668 is 86649988603.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30688994663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7808928 + ... + 7812856.

It is an arithmetic number, because the mean of its divisors is an integer number (1188432000).

Almost surely, 2^30688994668 is an apocalyptic number.

It is an amenable number.

30688994668 is a deficient number, since it is larger than the sum of its proper divisors (26355741332).

30688994668 is a wasteful number, since it uses less digits than its factorization.

30688994668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454 (or 5452 counting only the distinct ones).

The product of its (nonzero) digits is 107495424, while the sum is 67.

The spelling of 30688994668 in words is "thirty billion, six hundred eighty-eight million, nine hundred ninety-four thousand, six hundred sixty-eight".