29923545856 has 18 divisors (see below), whose sum is σ = 59730203372. Its totient is φ = 14961772800.

The previous prime is 29923545737. The next prime is 29923545881. The reversal of 29923545856 is 65854532992.

It is a super-2 number, since 2×29923545856² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29923545856.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58444170 + ... + 58444681.

Almost surely, 2^29923545856 is an apocalyptic number.

It is an amenable number.

29923545856 is a deficient number, since it is larger than the sum of its proper divisors (29806657516).

29923545856 is an equidigital number, since it uses as much as digits as its factorization.

29923545856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116888867 (or 116888853 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 58.

The spelling of 29923545856 in words is "twenty-nine billion, nine hundred twenty-three million, five hundred forty-five thousand, eight hundred fifty-six".