29681821150 has 24 divisors (see below), whose sum is σ = 55292793624. Its totient is φ = 11854533600.

The previous prime is 29681821139. The next prime is 29681821237. The reversal of 29681821150 is 5112818692.

It is a junction number, because it is equal to n+sod(n) for n = 29681821097 and 29681821106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421896 + ... + 487195.

It is an arithmetic number, because the mean of its divisors is an integer number (2303866401).

Almost surely, 2^29681821150 is an apocalyptic number.

29681821150 is a deficient number, since it is larger than the sum of its proper divisors (25610972474).

29681821150 is a wasteful number, since it uses less digits than its factorization.

29681821150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909756 (or 909751 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 43.

The spelling of 29681821150 in words is "twenty-nine billion, six hundred eighty-one million, eight hundred twenty-one thousand, one hundred fifty".