125922538789 has 2 divisors, whose sum is σ = 125922538790. Its totient is φ = 125922538788.

The previous prime is 125922538757. The next prime is 125922538849. The reversal of 125922538789 is 987835229521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124446672900 + 1475865889 = 352770^2 + 38417^2 .

It is a cyclic number.

It is not a de Polignac number, because 125922538789 - 2⁵ = 125922538757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125922538739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62961269394 + 62961269395.

It is an arithmetic number, because the mean of its divisors is an integer number (62961269395).

Almost surely, 2^125922538789 is an apocalyptic number.

It is an amenable number.

125922538789 is a deficient number, since it is larger than the sum of its proper divisors (1).

125922538789 is an equidigital number, since it uses as much as digits as its factorization.

125922538789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 61.

The spelling of 125922538789 in words is "one hundred twenty-five billion, nine hundred twenty-two million, five hundred thirty-eight thousand, seven hundred eighty-nine".