210997592063983 has 2 divisors, whose sum is σ = 210997592063984. Its totient is φ = 210997592063982.

The previous prime is 210997592063969. The next prime is 210997592064031. The reversal of 210997592063983 is 389360295799012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210997592063983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210997592063903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105498796031991 + 105498796031992.

It is an arithmetic number, because the mean of its divisors is an integer number (105498796031992).

Almost surely, 2^{210997592063983} is an apocalyptic number.

210997592063983 is a deficient number, since it is larger than the sum of its proper divisors (1).

210997592063983 is an equidigital number, since it uses as much as digits as its factorization.

210997592063983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396809280, while the sum is 73.

The spelling of 210997592063983 in words is "two hundred ten trillion, nine hundred ninety-seven billion, five hundred ninety-two million, sixty-three thousand, nine hundred eighty-three".