2891574463 has 2 divisors, whose sum is σ = 2891574464. Its totient is φ = 2891574462.

The previous prime is 2891574461. The next prime is 2891574473. The reversal of 2891574463 is 3644751982.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2891574463 - 2¹ = 2891574461 is a prime.

It is a super-2 number, since 2×2891574463² = 16722405750147476738, which contains 22 as substring.

Together with 2891574461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2891574461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445787231 + 1445787232.

It is an arithmetic number, because the mean of its divisors is an integer number (1445787232).

Almost surely, 2^2891574463 is an apocalyptic number.

2891574463 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891574463 is an equidigital number, since it uses as much as digits as its factorization.

2891574463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 2891574463 is about 53773.3620206139. The cubic root of 2891574463 is about 1424.6607524012.

The spelling of 2891574463 in words is "two billion, eight hundred ninety-one million, five hundred seventy-four thousand, four hundred sixty-three".