125826339949 has 2 divisors, whose sum is σ = 125826339950. Its totient is φ = 125826339948.

The previous prime is 125826339937. The next prime is 125826340007. The reversal of 125826339949 is 949933628521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88158517225 + 37667822724 = 296915^2 + 194082^2 .

It is a cyclic number.

It is not a de Polignac number, because 125826339949 - 2¹⁵ = 125826307181 is a prime.

It is a super-2 number, since 2×125826339949² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125826039949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62913169974 + 62913169975.

It is an arithmetic number, because the mean of its divisors is an integer number (62913169975).

Almost surely, 2^125826339949 is an apocalyptic number.

It is an amenable number.

125826339949 is a deficient number, since it is larger than the sum of its proper divisors (1).

125826339949 is an equidigital number, since it uses as much as digits as its factorization.

125826339949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25194240, while the sum is 61.

The spelling of 125826339949 in words is "one hundred twenty-five billion, eight hundred twenty-six million, three hundred thirty-nine thousand, nine hundred forty-nine".