29997974079893 has 8 divisors (see below), whose sum is σ = 31577167711200. Its totient is φ = 28418815737648.

The previous prime is 29997974079883. The next prime is 29997974079923. The reversal of 29997974079893 is 39897047979992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29997974079893 - 2⁸ = 29997974079637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29997974079883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7068446 + ... + 10486127.

It is an arithmetic number, because the mean of its divisors is an integer number (3947145963900).

Almost surely, 2^{29997974079893} is an apocalyptic number.

It is an amenable number.

29997974079893 is a deficient number, since it is larger than the sum of its proper divisors (1579193631307).

29997974079893 is a wasteful number, since it uses less digits than its factorization.

29997974079893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17644531.

The product of its (nonzero) digits is 34998578496, while the sum is 92.

The spelling of 29997974079893 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred seventy-four million, seventy-nine thousand, eight hundred ninety-three".