21714374233 has 2 divisors, whose sum is σ = 21714374234. Its totient is φ = 21714374232.

The previous prime is 21714374191. The next prime is 21714374281. The reversal of 21714374233 is 33247341712.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21515902489 + 198471744 = 146683^2 + 14088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21714374233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21714374192 and 21714374201.

It is not a weakly prime, because it can be changed into another prime (21714374933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10857187116 + 10857187117.

It is an arithmetic number, because the mean of its divisors is an integer number (10857187117).

Almost surely, 2^21714374233 is an apocalyptic number.

It is an amenable number.

21714374233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21714374233 is an equidigital number, since it uses as much as digits as its factorization.

21714374233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 37.

The spelling of 21714374233 in words is "twenty-one billion, seven hundred fourteen million, three hundred seventy-four thousand, two hundred thirty-three".