29493810923 has 4 divisors (see below), whose sum is σ = 29514538848. Its totient is φ = 29473083000.

The previous prime is 29493810919. The next prime is 29493810943. The reversal of 29493810923 is 32901839492.

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 29493810923 - 2² = 29493810919 is a prime.

It is a super-2 number, since 2×29493810923² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29493810943) 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, 10361828 + ... + 10364673.

It is an arithmetic number, because the mean of its divisors is an integer number (7378634712).

Almost surely, 2^29493810923 is an apocalyptic number.

29493810923 is a deficient number, since it is larger than the sum of its proper divisors (20727925).

29493810923 is a wasteful number, since it uses less digits than its factorization.

29493810923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20727924.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 29493810923 in words is "twenty-nine billion, four hundred ninety-three million, eight hundred ten thousand, nine hundred twenty-three".