33947424139 has 2 divisors, whose sum is σ = 33947424140. Its totient is φ = 33947424138.

The previous prime is 33947424131. The next prime is 33947424143. The reversal of 33947424139 is 93142474933.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (93142474933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33947424139 - 2³ = 33947424131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33947424092 and 33947424101.

It is not a weakly prime, because it can be changed into another prime (33947424131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16973712069 + 16973712070.

It is an arithmetic number, because the mean of its divisors is an integer number (16973712070).

Almost surely, 2^33947424139 is an apocalyptic number.

33947424139 is a deficient number, since it is larger than the sum of its proper divisors (1).

33947424139 is an equidigital number, since it uses as much as digits as its factorization.

33947424139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 49.

The spelling of 33947424139 in words is "thirty-three billion, nine hundred forty-seven million, four hundred twenty-four thousand, one hundred thirty-nine".