2112611641457 has 2 divisors, whose sum is σ = 2112611641458. Its totient is φ = 2112611641456.

The previous prime is 2112611641451. The next prime is 2112611641471. The reversal of 2112611641457 is 7541461162112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2065173059041 + 47438582416 = 1437071^2 + 217804^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112611641457 - 2¹² = 2112611637361 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112611641451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056305820728 + 1056305820729.

It is an arithmetic number, because the mean of its divisors is an integer number (1056305820729).

Almost surely, 2^{2112611641457} is an apocalyptic number.

It is an amenable number.

2112611641457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112611641457 is an equidigital number, since it uses as much as digits as its factorization.

2112611641457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The spelling of 2112611641457 in words is "two trillion, one hundred twelve billion, six hundred eleven million, six hundred forty-one thousand, four hundred fifty-seven".