125838444558473 has 2 divisors, whose sum is σ = 125838444558474. Its totient is φ = 125838444558472.

The previous prime is 125838444558469. The next prime is 125838444558481. The reversal of 125838444558473 is 374855444838521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104278469692489 + 21559974865984 = 10211683^2 + 4643272^2 .

It is a cyclic number.

It is not a de Polignac number, because 125838444558473 - 2² = 125838444558469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125838444558397 and 125838444558406.

It is not a weakly prime, because it can be changed into another prime (125838444551473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62919222279236 + 62919222279237.

It is an arithmetic number, because the mean of its divisors is an integer number (62919222279237).

Almost surely, 2^{125838444558473} is an apocalyptic number.

It is an amenable number.

125838444558473 is a deficient number, since it is larger than the sum of its proper divisors (1).

125838444558473 is an equidigital number, since it uses as much as digits as its factorization.

125838444558473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2064384000, while the sum is 71.

The spelling of 125838444558473 in words is "one hundred twenty-five trillion, eight hundred thirty-eight billion, four hundred forty-four million, five hundred fifty-eight thousand, four hundred seventy-three".