30613796391 has 4 divisors (see below), whose sum is σ = 40818395192. Its totient is φ = 20409197592.

The previous prime is 30613796383. The next prime is 30613796431. The reversal of 30613796391 is 19369731603.

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

It is not a de Polignac number, because 30613796391 - 2³ = 30613796383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30613796391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30613796491) 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, 5102299396 + ... + 5102299401.

It is an arithmetic number, because the mean of its divisors is an integer number (10204598798).

Almost surely, 2^30613796391 is an apocalyptic number.

30613796391 is a deficient number, since it is larger than the sum of its proper divisors (10204598801).

30613796391 is a wasteful number, since it uses less digits than its factorization.

30613796391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10204598800.

The product of its (nonzero) digits is 551124, while the sum is 48.

The spelling of 30613796391 in words is "thirty billion, six hundred thirteen million, seven hundred ninety-six thousand, three hundred ninety-one".