29639460656 has 60 divisors (see below), whose sum is σ = 62734620888. Its totient is φ = 13558551552.

The previous prime is 29639460649. The next prime is 29639460659. The reversal of 29639460656 is 65606493692.

It is not an unprimeable number, because it can be changed into a prime (29639460659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257051 + ... + 354053.

Almost surely, 2^29639460656 is an apocalyptic number.

29639460656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29639460656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31367310444).

29639460656 is an abundant number, since it is smaller than the sum of its proper divisors (33095160232).

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

29639460656 is a wasteful number, since it uses less digits than its factorization.

29639460656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97150 (or 97131 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 56.

The spelling of 29639460656 in words is "twenty-nine billion, six hundred thirty-nine million, four hundred sixty thousand, six hundred fifty-six".