215096802691 has 2 divisors, whose sum is σ = 215096802692. Its totient is φ = 215096802690.

The previous prime is 215096802659. The next prime is 215096802757. The reversal of 215096802691 is 196208690512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215096802691 - 2⁵ = 215096802659 is a prime.

It is not a weakly prime, because it can be changed into another prime (215096802611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107548401345 + 107548401346.

It is an arithmetic number, because the mean of its divisors is an integer number (107548401346).

Almost surely, 2^215096802691 is an apocalyptic number.

215096802691 is a deficient number, since it is larger than the sum of its proper divisors (1).

215096802691 is an equidigital number, since it uses as much as digits as its factorization.

215096802691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 215096802691 in words is "two hundred fifteen billion, ninety-six million, eight hundred two thousand, six hundred ninety-one".