2123646463259 has 2 divisors, whose sum is σ = 2123646463260. Its totient is φ = 2123646463258.

The previous prime is 2123646463207. The next prime is 2123646463273. The reversal of 2123646463259 is 9523646463212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123646463259 - 2²⁴ = 2123629686043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2123646463259.

It is not a weakly prime, because it can be changed into another prime (2123646463559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061823231629 + 1061823231630.

It is an arithmetic number, because the mean of its divisors is an integer number (1061823231630).

Almost surely, 2^{2123646463259} is an apocalyptic number.

2123646463259 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123646463259 is an equidigital number, since it uses as much as digits as its factorization.

2123646463259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11197440, while the sum is 53.

The spelling of 2123646463259 in words is "two trillion, one hundred twenty-three billion, six hundred forty-six million, four hundred sixty-three thousand, two hundred fifty-nine".