125905392809299 has 2 divisors, whose sum is σ = 125905392809300. Its totient is φ = 125905392809298.

The previous prime is 125905392809237. The next prime is 125905392809321. The reversal of 125905392809299 is 992908293509521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125905392809299 - 2⁷ = 125905392809171 is a prime.

It is not a weakly prime, because it can be changed into another prime (125905392804299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62952696404649 + 62952696404650.

It is an arithmetic number, because the mean of its divisors is an integer number (62952696404650).

Almost surely, 2^{125905392809299} is an apocalyptic number.

125905392809299 is a deficient number, since it is larger than the sum of its proper divisors (1).

125905392809299 is an equidigital number, since it uses as much as digits as its factorization.

125905392809299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283435200, while the sum is 73.

The spelling of 125905392809299 in words is "one hundred twenty-five trillion, nine hundred five billion, three hundred ninety-two million, eight hundred nine thousand, two hundred ninety-nine".