29389416864 has 24 divisors (see below), whose sum is σ = 77147219520. Its totient is φ = 9796472256.

The previous prime is 29389416857. The next prime is 29389416911. The reversal of 29389416864 is 46861498392.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 29389416798 and 29389416807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153069784 + ... + 153069975.

It is an arithmetic number, because the mean of its divisors is an integer number (3214467480).

Almost surely, 2^29389416864 is an apocalyptic number.

29389416864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

29389416864 is an abundant number, since it is smaller than the sum of its proper divisors (47757802656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29389416864 is a wasteful number, since it uses less digits than its factorization.

29389416864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306139772 (or 306139764 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 60.

The spelling of 29389416864 in words is "twenty-nine billion, three hundred eighty-nine million, four hundred sixteen thousand, eight hundred sixty-four".