29997923269021 has 8 divisors (see below), whose sum is σ = 30023363170944. Its totient is φ = 29972487174240.

The previous prime is 29997923268923. The next prime is 29997923269037. The reversal of 29997923269021 is 12096232979992.

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 29997923269021 - 2³¹ = 29995775785373 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 (29997923269081) 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, 14925841 + ... + 16815961.

It is an arithmetic number, because the mean of its divisors is an integer number (3752920396368).

Almost surely, 2^{29997923269021} is an apocalyptic number.

It is an amenable number.

29997923269021 is a deficient number, since it is larger than the sum of its proper divisors (25439901923).

29997923269021 is a wasteful number, since it uses less digits than its factorization.

29997923269021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903571.

The product of its (nonzero) digits is 119042784, while the sum is 70.

The spelling of 29997923269021 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred twenty-three million, two hundred sixty-nine thousand, twenty-one".