30792541991 has 4 divisors (see below), whose sum is σ = 30793515000. Its totient is φ = 30791568984.

The previous prime is 30792541973. The next prime is 30792542023. The reversal of 30792541991 is 19914529703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19914529703 = 2269 ⋅8776787.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30792541991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30792541951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437381 + ... + 502878.

It is an arithmetic number, because the mean of its divisors is an integer number (7698378750).

Almost surely, 2^30792541991 is an apocalyptic number.

30792541991 is a deficient number, since it is larger than the sum of its proper divisors (973009).

30792541991 is an equidigital number, since it uses as much as digits as its factorization.

30792541991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973008.

The product of its (nonzero) digits is 612360, while the sum is 50.

The spelling of 30792541991 in words is "thirty billion, seven hundred ninety-two million, five hundred forty-one thousand, nine hundred ninety-one".