747737225129 has 2 divisors, whose sum is σ = 747737225130. Its totient is φ = 747737225128.

The previous prime is 747737225093. The next prime is 747737225149. The reversal of 747737225129 is 921522737747.

747737225129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 677526534400 + 70210690729 = 823120^2 + 264973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-747737225129 is a prime.

It is a super-2 number, since 2×747737225129² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (747737225149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373868612564 + 373868612565.

It is an arithmetic number, because the mean of its divisors is an integer number (373868612565).

Almost surely, 2^747737225129 is an apocalyptic number.

It is an amenable number.

747737225129 is a deficient number, since it is larger than the sum of its proper divisors (1).

747737225129 is an equidigital number, since it uses as much as digits as its factorization.

747737225129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10372320, while the sum is 56.

The spelling of 747737225129 in words is "seven hundred forty-seven billion, seven hundred thirty-seven million, two hundred twenty-five thousand, one hundred twenty-nine".