43340213029979 has 2 divisors, whose sum is σ = 43340213029980. Its totient is φ = 43340213029978.

The previous prime is 43340213029961. The next prime is 43340213030017. The reversal of 43340213029979 is 97992031204334.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43340213029979 - 2⁸ = 43340213029723 is a prime.

It is a super-2 number, since 2×43340213029979² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43340213022979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21670106514989 + 21670106514990.

It is an arithmetic number, because the mean of its divisors is an integer number (21670106514990).

Almost surely, 2^{43340213029979} is an apocalyptic number.

43340213029979 is a deficient number, since it is larger than the sum of its proper divisors (1).

43340213029979 is an equidigital number, since it uses as much as digits as its factorization.

43340213029979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8817984, while the sum is 56.

The spelling of 43340213029979 in words is "forty-three trillion, three hundred forty billion, two hundred thirteen million, twenty-nine thousand, nine hundred seventy-nine".