126081625577 has 2 divisors, whose sum is σ = 126081625578. Its totient is φ = 126081625576.

The previous prime is 126081625531. The next prime is 126081625597. The reversal of 126081625577 is 775526180621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122940695641 + 3140929936 = 350629^2 + 56044^2 .

It is a cyclic number.

It is not a de Polignac number, because 126081625577 - 2¹⁰ = 126081624553 is a prime.

It is not a weakly prime, because it can be changed into another prime (126081625597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63040812788 + 63040812789.

It is an arithmetic number, because the mean of its divisors is an integer number (63040812789).

Almost surely, 2^126081625577 is an apocalyptic number.

It is an amenable number.

126081625577 is a deficient number, since it is larger than the sum of its proper divisors (1).

126081625577 is an equidigital number, since it uses as much as digits as its factorization.

126081625577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 126081625577 in words is "one hundred twenty-six billion, eighty-one million, six hundred twenty-five thousand, five hundred seventy-seven".