2638023413 has 2 divisors, whose sum is σ = 2638023414. Its totient is φ = 2638023412.

The previous prime is 2638023407. The next prime is 2638023439. The reversal of 2638023413 is 3143208362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1915112644 + 722910769 = 43762^2 + 26887^2 .

It is a cyclic number.

It is not a de Polignac number, because 2638023413 - 2⁴ = 2638023397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2638023413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2638023463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319011706 + 1319011707.

It is an arithmetic number, because the mean of its divisors is an integer number (1319011707).

Almost surely, 2^2638023413 is an apocalyptic number.

It is an amenable number.

2638023413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638023413 is an equidigital number, since it uses as much as digits as its factorization.

2638023413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 2638023413 is about 51361.6920768777. The cubic root of 2638023413 is about 1381.7396343099.

The spelling of 2638023413 in words is "two billion, six hundred thirty-eight million, twenty-three thousand, four hundred thirteen".