2512381643 has 2 divisors, whose sum is σ = 2512381644. Its totient is φ = 2512381642.

The previous prime is 2512381603. The next prime is 2512381649. The reversal of 2512381643 is 3461832152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2512381643 - 2⁶ = 2512381579 is a prime.

It is not a weakly prime, because it can be changed into another prime (2512381649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256190821 + 1256190822.

It is an arithmetic number, because the mean of its divisors is an integer number (1256190822).

Almost surely, 2^2512381643 is an apocalyptic number.

2512381643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2512381643 is an equidigital number, since it uses as much as digits as its factorization.

2512381643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 2512381643 is about 50123.6635033793. The cubic root of 2512381643 is about 1359.4457161313.

The spelling of 2512381643 in words is "two billion, five hundred twelve million, three hundred eighty-one thousand, six hundred forty-three".