126551724259 has 2 divisors, whose sum is σ = 126551724260. Its totient is φ = 126551724258.

The previous prime is 126551724253. The next prime is 126551724281. The reversal of 126551724259 is 952427155621.

It is a weak prime.

It is an emirp because it is prime and its reverse (952427155621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126551724259 - 2²⁹ = 126014853347 is a prime.

It is not a weakly prime, because it can be changed into another prime (126551724253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63275862129 + 63275862130.

It is an arithmetic number, because the mean of its divisors is an integer number (63275862130).

Almost surely, 2^126551724259 is an apocalyptic number.

126551724259 is a deficient number, since it is larger than the sum of its proper divisors (1).

126551724259 is an equidigital number, since it uses as much as digits as its factorization.

126551724259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512000, while the sum is 49.

The spelling of 126551724259 in words is "one hundred twenty-six billion, five hundred fifty-one million, seven hundred twenty-four thousand, two hundred fifty-nine".