29136891056 has 80 divisors (see below), whose sum is σ = 73567416384. Its totient is φ = 10848632832.

The previous prime is 29136890999. The next prime is 29136891059. The reversal of 29136891056 is 65019863192.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 29136890995 and 29136891013.

It is not an unprimeable number, because it can be changed into a prime (29136891059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563825 + ... + 613328.

Almost surely, 2^29136891056 is an apocalyptic number.

29136891056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

29136891056 is an abundant number, since it is smaller than the sum of its proper divisors (44430525328).

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

29136891056 is a wasteful number, since it uses less digits than its factorization.

29136891056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177198 (or 1177192 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 29136891056 in words is "twenty-nine billion, one hundred thirty-six million, eight hundred ninety-one thousand, fifty-six".