29314772421 has 32 divisors (see below), whose sum is σ = 44964979200. Its totient is φ = 16801030080.

The previous prime is 29314772387. The next prime is 29314772441. The reversal of 29314772421 is 12427741392.

It is not a de Polignac number, because 29314772421 - 2²² = 29310578117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29314772441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307270 + ... + 391208.

It is an arithmetic number, because the mean of its divisors is an integer number (1405155600).

Almost surely, 2^29314772421 is an apocalyptic number.

It is an amenable number.

29314772421 is a deficient number, since it is larger than the sum of its proper divisors (15650206779).

29314772421 is a wasteful number, since it uses less digits than its factorization.

29314772421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84529.

The product of its digits is 169344, while the sum is 42.

The spelling of 29314772421 in words is "twenty-nine billion, three hundred fourteen million, seven hundred seventy-two thousand, four hundred twenty-one".