2891481304319 has 2 divisors, whose sum is σ = 2891481304320. Its totient is φ = 2891481304318.

The previous prime is 2891481304307. The next prime is 2891481304331. The reversal of 2891481304319 is 9134031841982.

It is a balanced prime because it is at equal distance from previous prime (2891481304307) and next prime (2891481304331).

It is a cyclic number.

It is not a de Polignac number, because 2891481304319 - 2¹² = 2891481300223 is a prime.

It is a super-2 number, since 2×2891481304319² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2891481304519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445740652159 + 1445740652160.

It is an arithmetic number, because the mean of its divisors is an integer number (1445740652160).

Almost surely, 2^{2891481304319} is an apocalyptic number.

2891481304319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891481304319 is an equidigital number, since it uses as much as digits as its factorization.

2891481304319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 2891481304319 in words is "two trillion, eight hundred ninety-one billion, four hundred eighty-one million, three hundred four thousand, three hundred nineteen".