30439940775 has 12 divisors (see below), whose sum is σ = 50327368872. Its totient is φ = 16234635040.

The previous prime is 30439940759. The next prime is 30439940827. The reversal of 30439940775 is 57704993403.

It is not a de Polignac number, because 30439940775 - 2⁴ = 30439940759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202932864 + ... + 202933013.

It is an arithmetic number, because the mean of its divisors is an integer number (4193947406).

Almost surely, 2^30439940775 is an apocalyptic number.

30439940775 is a deficient number, since it is larger than the sum of its proper divisors (19887428097).

30439940775 is a wasteful number, since it uses less digits than its factorization.

30439940775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405865890 (or 405865885 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 51.

The spelling of 30439940775 in words is "thirty billion, four hundred thirty-nine million, nine hundred forty thousand, seven hundred seventy-five".