29159678880 has 144 divisors (see below), whose sum is σ = 101934620424. Its totient is φ = 7586242560.

The previous prime is 29159678857. The next prime is 29159678953. The reversal of 29159678880 is 8887695192.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14374091664 + 14785587216 = 119892^2 + 121596^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187909 + ... + 305988.

Almost surely, 2^29159678880 is an apocalyptic number.

29159678880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29159678880 is an abundant number, since it is smaller than the sum of its proper divisors (72774941544).

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

29159678880 is a wasteful number, since it uses less digits than its factorization.

29159678880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493959 (or 493948 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 63.

The spelling of 29159678880 in words is "twenty-nine billion, one hundred fifty-nine million, six hundred seventy-eight thousand, eight hundred eighty".