212650671943939 has 2 divisors, whose sum is σ = 212650671943940. Its totient is φ = 212650671943938.

The previous prime is 212650671943937. The next prime is 212650671943961. The reversal of 212650671943939 is 939349176056212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212650671943939 - 2¹ = 212650671943937 is a prime.

Together with 212650671943937, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (212650671943937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106325335971969 + 106325335971970.

It is an arithmetic number, because the mean of its divisors is an integer number (106325335971970).

Almost surely, 2^{212650671943939} is an apocalyptic number.

212650671943939 is a deficient number, since it is larger than the sum of its proper divisors (1).

212650671943939 is an equidigital number, since it uses as much as digits as its factorization.

212650671943939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132269760, while the sum is 67.

The spelling of 212650671943939 in words is "two hundred twelve trillion, six hundred fifty billion, six hundred seventy-one million, nine hundred forty-three thousand, nine hundred thirty-nine".