29129438223 has 48 divisors (see below), whose sum is σ = 44786851200. Its totient is φ = 18211253760.

The previous prime is 29129438183. The next prime is 29129438267. The reversal of 29129438223 is 32283492192.

It is not a de Polignac number, because 29129438223 - 2⁶ = 29129438159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29129438323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2444586 + ... + 2456472.

It is an arithmetic number, because the mean of its divisors is an integer number (933059400).

Almost surely, 2^29129438223 is an apocalyptic number.

29129438223 is a deficient number, since it is larger than the sum of its proper divisors (15657412977).

29129438223 is a wasteful number, since it uses less digits than its factorization.

29129438223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12192 (or 12189 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 29129438223 in words is "twenty-nine billion, one hundred twenty-nine million, four hundred thirty-eight thousand, two hundred twenty-three".