2158670051 has 2 divisors, whose sum is σ = 2158670052. Its totient is φ = 2158670050.

The previous prime is 2158669969. The next prime is 2158670053. The reversal of 2158670051 is 1500768512.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2158670051 is a prime.

Together with 2158670053, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2158669993 and 2158670020.

It is not a weakly prime, because it can be changed into another prime (2158670053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079335025 + 1079335026.

It is an arithmetic number, because the mean of its divisors is an integer number (1079335026).

Almost surely, 2^2158670051 is an apocalyptic number.

2158670051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2158670051 is an equidigital number, since it uses as much as digits as its factorization.

2158670051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 2158670051 is about 46461.4899782605. The cubic root of 2158670051 is about 1292.3954550810.

The spelling of 2158670051 in words is "two billion, one hundred fifty-eight million, six hundred seventy thousand, fifty-one".