29011989756 has 12 divisors (see below), whose sum is σ = 67694642792. Its totient is φ = 9670663248.

The previous prime is 29011989733. The next prime is 29011989767. The reversal of 29011989756 is 65798911092.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 29011989696 and 29011989705.

It is a congruent number.

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, 1208832895 + ... + 1208832918.

Almost surely, 2^29011989756 is an apocalyptic number.

It is an amenable number.

29011989756 is an abundant number, since it is smaller than the sum of its proper divisors (38682653036).

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

29011989756 is a wasteful number, since it uses less digits than its factorization.

29011989756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417665820 (or 2417665818 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 57.

The spelling of 29011989756 in words is "twenty-nine billion, eleven million, nine hundred eighty-nine thousand, seven hundred fifty-six".