21273883259 has 2 divisors, whose sum is σ = 21273883260. Its totient is φ = 21273883258.

The previous prime is 21273883247. The next prime is 21273883271. The reversal of 21273883259 is 95238837212.

It is a balanced prime because it is at equal distance from previous prime (21273883247) and next prime (21273883271).

It is a cyclic number.

It is not a de Polignac number, because 21273883259 - 2²⁴ = 21257106043 is a prime.

It is a super-2 number, since 2×21273883259² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21272883259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10636941629 + 10636941630.

It is an arithmetic number, because the mean of its divisors is an integer number (10636941630).

Almost surely, 2^21273883259 is an apocalyptic number.

21273883259 is a deficient number, since it is larger than the sum of its proper divisors (1).

21273883259 is an equidigital number, since it uses as much as digits as its factorization.

21273883259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 50.

The spelling of 21273883259 in words is "twenty-one billion, two hundred seventy-three million, eight hundred eighty-three thousand, two hundred fifty-nine".