29393889393 has 16 divisors (see below), whose sum is σ = 44613651456. Its totient is φ = 17039935440.

The previous prime is 29393889353. The next prime is 29393889407. The reversal of 29393889393 is 39398839392.

It is not a de Polignac number, because 29393889393 - 2²² = 29389695089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29393889313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19362805 + ... + 19364322.

It is an arithmetic number, because the mean of its divisors is an integer number (2788353216).

Almost surely, 2^29393889393 is an apocalyptic number.

29393889393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29393889393 is a deficient number, since it is larger than the sum of its proper divisors (15219762063).

29393889393 is a wasteful number, since it uses less digits than its factorization.

29393889393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38727164.

The product of its digits is 68024448, while the sum is 66.

The spelling of 29393889393 in words is "twenty-nine billion, three hundred ninety-three million, eight hundred eighty-nine thousand, three hundred ninety-three".