30799879988 has 12 divisors (see below), whose sum is σ = 53902370340. Its totient is φ = 15399202752.

The previous prime is 30799879951. The next prime is 30799880003. The reversal of 30799879988 is 88997899703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6522500644 + 24277379344 = 80762^2 + 155812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84281 + ... + 262112.

It is an arithmetic number, because the mean of its divisors is an integer number (4491864195).

Almost surely, 2^30799879988 is an apocalyptic number.

It is an amenable number.

30799879988 is a deficient number, since it is larger than the sum of its proper divisors (23102490352).

30799879988 is a wasteful number, since it uses less digits than its factorization.

30799879988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368626 (or 368624 counting only the distinct ones).

The product of its (nonzero) digits is 493807104, while the sum is 77.

The spelling of 30799879988 in words is "thirty billion, seven hundred ninety-nine million, eight hundred seventy-nine thousand, nine hundred eighty-eight".