7477572125129 has 2 divisors, whose sum is σ = 7477572125130. Its totient is φ = 7477572125128.

The previous prime is 7477572125119. The next prime is 7477572125131. The reversal of 7477572125129 is 9215212757747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4826927638729 + 2650644486400 = 2197027^2 + 1628080^2 .

It is a cyclic number.

It is not a de Polignac number, because 7477572125129 - 2⁴ = 7477572125113 is a prime.

Together with 7477572125131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7477572125119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3738786062564 + 3738786062565.

It is an arithmetic number, because the mean of its divisors is an integer number (3738786062565).

Almost surely, 2^{7477572125129} is an apocalyptic number.

It is an amenable number.

7477572125129 is a deficient number, since it is larger than the sum of its proper divisors (1).

7477572125129 is an equidigital number, since it uses as much as digits as its factorization.

7477572125129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17287200, while the sum is 59.

The spelling of 7477572125129 in words is "seven trillion, four hundred seventy-seven billion, five hundred seventy-two million, one hundred twenty-five thousand, one hundred twenty-nine".