21094698337 has 2 divisors, whose sum is σ = 21094698338. Its totient is φ = 21094698336.

The previous prime is 21094698283. The next prime is 21094698341. The reversal of 21094698337 is 73389649012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20954299536 + 140398801 = 144756^2 + 11849^2 .

It is a cyclic number.

It is not a de Polignac number, because 21094698337 - 2¹¹ = 21094696289 is a prime.

It is not a weakly prime, because it can be changed into another prime (21094693337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10547349168 + 10547349169.

It is an arithmetic number, because the mean of its divisors is an integer number (10547349169).

Almost surely, 2^21094698337 is an apocalyptic number.

It is an amenable number.

21094698337 is a deficient number, since it is larger than the sum of its proper divisors (1).

21094698337 is an equidigital number, since it uses as much as digits as its factorization.

21094698337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 21094698337 in words is "twenty-one billion, ninety-four million, six hundred ninety-eight thousand, three hundred thirty-seven".