2662011491 has 2 divisors, whose sum is σ = 2662011492. Its totient is φ = 2662011490.

The previous prime is 2662011481. The next prime is 2662011493. The reversal of 2662011491 is 1941102662.

2662011491 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 is a cyclic number.

It is not a de Polignac number, because 2662011491 - 2³⁰ = 1588269667 is a prime.

Together with 2662011493, 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 (2662011493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331005745 + 1331005746.

It is an arithmetic number, because the mean of its divisors is an integer number (1331005746).

Almost surely, 2^2662011491 is an apocalyptic number.

2662011491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2662011491 is an equidigital number, since it uses as much as digits as its factorization.

2662011491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2662011491 is about 51594.6847165481. The cubic root of 2662011491 is about 1385.9151490623.

The spelling of 2662011491 in words is "two billion, six hundred sixty-two million, eleven thousand, four hundred ninety-one".