3791571749129 has 2 divisors, whose sum is σ = 3791571749130. Its totient is φ = 3791571749128.

The previous prime is 3791571749081. The next prime is 3791571749149. The reversal of 3791571749129 is 9219471751973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3012151158025 + 779420591104 = 1735555^2 + 882848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3791571749129 is a prime.

It is not a weakly prime, because it can be changed into another prime (3791571749149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1895785874564 + 1895785874565.

It is an arithmetic number, because the mean of its divisors is an integer number (1895785874565).

Almost surely, 2^{3791571749129} is an apocalyptic number.

It is an amenable number.

3791571749129 is a deficient number, since it is larger than the sum of its proper divisors (1).

3791571749129 is an equidigital number, since it uses as much as digits as its factorization.

3791571749129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30005640, while the sum is 65.

The spelling of 3791571749129 in words is "three trillion, seven hundred ninety-one billion, five hundred seventy-one million, seven hundred forty-nine thousand, one hundred twenty-nine".