29997974079739 has 2 divisors, whose sum is σ = 29997974079740. Its totient is φ = 29997974079738.

The previous prime is 29997974079719. The next prime is 29997974079839. The reversal of 29997974079739 is 93797047979992.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29997974079739 - 2¹¹ = 29997974077691 is a prime.

It is not a weakly prime, because it can be changed into another prime (29997974079719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14998987039869 + 14998987039870.

It is an arithmetic number, because the mean of its divisors is an integer number (14998987039870).

Almost surely, 2^{29997974079739} is an apocalyptic number.

29997974079739 is a deficient number, since it is larger than the sum of its proper divisors (1).

29997974079739 is an equidigital number, since it uses as much as digits as its factorization.

29997974079739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30623756184, while the sum is 91.

The spelling of 29997974079739 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred seventy-four million, seventy-nine thousand, seven hundred thirty-nine".