30930903907 has 4 divisors (see below), whose sum is σ = 32275725840. Its totient is φ = 29586081976.

The previous prime is 30930903893. The next prime is 30930903959. The reversal of 30930903907 is 70930903903.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30930903907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30930903407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672410932 + ... + 672410977.

It is an arithmetic number, because the mean of its divisors is an integer number (8068931460).

Almost surely, 2^30930903907 is an apocalyptic number.

30930903907 is a deficient number, since it is larger than the sum of its proper divisors (1344821933).

30930903907 is a wasteful number, since it uses less digits than its factorization.

30930903907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344821932.

The product of its (nonzero) digits is 137781, while the sum is 43.

The spelling of 30930903907 in words is "thirty billion, nine hundred thirty million, nine hundred three thousand, nine hundred seven".