13073378291 has 2 divisors, whose sum is σ = 13073378292. Its totient is φ = 13073378290.

The previous prime is 13073378261. The next prime is 13073378323. The reversal of 13073378291 is 19287337031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13073378291 - 2²⁶ = 13006269427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13073378251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6536689145 + 6536689146.

It is an arithmetic number, because the mean of its divisors is an integer number (6536689146).

Almost surely, 2^13073378291 is an apocalyptic number.

13073378291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13073378291 is an equidigital number, since it uses as much as digits as its factorization.

13073378291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 13073378291 in words is "thirteen billion, seventy-three million, three hundred seventy-eight thousand, two hundred ninety-one".