30685990379 has 6 divisors (see below), whose sum is σ = 33476259684. Its totient is φ = 27895826720.

The previous prime is 30685990373. The next prime is 30685990421. The reversal of 30685990379 is 97309958603.

It is not a de Polignac number, because 30685990379 - 2⁸ = 30685990123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30685990373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554579 + ... + 607395.

It is an arithmetic number, because the mean of its divisors is an integer number (5579376614).

Almost surely, 2^30685990379 is an apocalyptic number.

30685990379 is a deficient number, since it is larger than the sum of its proper divisors (2790269305).

30685990379 is an frugal number, since it uses more digits than its factorization.

30685990379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105645 (or 52828 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 59.

The spelling of 30685990379 in words is "thirty billion, six hundred eighty-five million, nine hundred ninety thousand, three hundred seventy-nine".