291204078083 has 2 divisors, whose sum is σ = 291204078084. Its totient is φ = 291204078082.

The previous prime is 291204078031. The next prime is 291204078097. The reversal of 291204078083 is 380870402192.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-291204078083 is a prime.

It is not a weakly prime, because it can be changed into another prime (291204077083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145602039041 + 145602039042.

It is an arithmetic number, because the mean of its divisors is an integer number (145602039042).

Almost surely, 2^291204078083 is an apocalyptic number.

291204078083 is a deficient number, since it is larger than the sum of its proper divisors (1).

291204078083 is an equidigital number, since it uses as much as digits as its factorization.

291204078083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 291204078083 in words is "two hundred ninety-one billion, two hundred four million, seventy-eight thousand, eighty-three".