29993764823479 has 4 divisors (see below), whose sum is σ = 30192399027760. Its totient is φ = 29795130619200.

The previous prime is 29993764823441. The next prime is 29993764823497. The reversal of 29993764823479 is 97432846739992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29993764823479 - 2¹⁷ = 29993764692407 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 (29993767823479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99317101914 + ... + 99317102215.

It is an arithmetic number, because the mean of its divisors is an integer number (7548099756940).

Almost surely, 2^{29993764823479} is an apocalyptic number.

29993764823479 is a deficient number, since it is larger than the sum of its proper divisors (198634204281).

29993764823479 is a wasteful number, since it uses less digits than its factorization.

29993764823479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198634204280.

The product of its digits is 8888527872, while the sum is 82.

The spelling of 29993764823479 in words is "twenty-nine trillion, nine hundred ninety-three billion, seven hundred sixty-four million, eight hundred twenty-three thousand, four hundred seventy-nine".