12412029191657 has 2 divisors, whose sum is σ = 12412029191658. Its totient is φ = 12412029191656.

The previous prime is 12412029191647. The next prime is 12412029191659. The reversal of 12412029191657 is 75619192021421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9801933686416 + 2610095505241 = 3130804^2 + 1615579^2 .

It is a cyclic number.

It is not a de Polignac number, because 12412029191657 - 2⁴ = 12412029191641 is a prime.

Together with 12412029191659, 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 (12412029191659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6206014595828 + 6206014595829.

It is an arithmetic number, because the mean of its divisors is an integer number (6206014595829).

Almost surely, 2^{12412029191657} is an apocalyptic number.

It is an amenable number.

12412029191657 is a deficient number, since it is larger than the sum of its proper divisors (1).

12412029191657 is an equidigital number, since it uses as much as digits as its factorization.

12412029191657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 12412029191657 in words is "twelve trillion, four hundred twelve billion, twenty-nine million, one hundred ninety-one thousand, six hundred fifty-seven".