125849411573 has 2 divisors, whose sum is σ = 125849411574. Its totient is φ = 125849411572.

The previous prime is 125849411509. The next prime is 125849411647. The reversal of 125849411573 is 375114948521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69565645009 + 56283766564 = 263753^2 + 237242^2 .

It is a cyclic number.

It is not a de Polignac number, because 125849411573 - 2⁶ = 125849411509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125849411173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62924705786 + 62924705787.

It is an arithmetic number, because the mean of its divisors is an integer number (62924705787).

Almost surely, 2^125849411573 is an apocalyptic number.

It is an amenable number.

125849411573 is a deficient number, since it is larger than the sum of its proper divisors (1).

125849411573 is an equidigital number, since it uses as much as digits as its factorization.

125849411573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 50.

The spelling of 125849411573 in words is "one hundred twenty-five billion, eight hundred forty-nine million, four hundred eleven thousand, five hundred seventy-three".