29993708032439 has 2 divisors, whose sum is σ = 29993708032440. Its totient is φ = 29993708032438.

The previous prime is 29993708032433. The next prime is 29993708032451. The reversal of 29993708032439 is 93423080739992.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29993708032439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29993708032433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14996854016219 + 14996854016220.

It is an arithmetic number, because the mean of its divisors is an integer number (14996854016220).

Almost surely, 2^{29993708032439} is an apocalyptic number.

29993708032439 is a deficient number, since it is larger than the sum of its proper divisors (1).

29993708032439 is an equidigital number, since it uses as much as digits as its factorization.

29993708032439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158723712, while the sum is 68.

The spelling of 29993708032439 in words is "twenty-nine trillion, nine hundred ninety-three billion, seven hundred eight million, thirty-two thousand, four hundred thirty-nine".