2623264381 has 2 divisors, whose sum is σ = 2623264382. Its totient is φ = 2623264380.

The previous prime is 2623264297. The next prime is 2623264403. The reversal of 2623264381 is 1834623262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2226896100 + 396368281 = 47190^2 + 19909^2 .

It is a cyclic number.

It is not a de Polignac number, because 2623264381 - 2¹⁵ = 2623231613 is a prime.

It is a super-2 number, since 2×2623264381² = 13763032025246626322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2623264381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2623264681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1311632190 + 1311632191.

It is an arithmetic number, because the mean of its divisors is an integer number (1311632191).

Almost surely, 2^2623264381 is an apocalyptic number.

It is an amenable number.

2623264381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2623264381 is an equidigital number, since it uses as much as digits as its factorization.

2623264381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The square root of 2623264381 is about 51217.8131219989. The cubic root of 2623264381 is about 1379.1579931454.

The spelling of 2623264381 in words is "two billion, six hundred twenty-three million, two hundred sixty-four thousand, three hundred eighty-one".