29613746668 has 18 divisors (see below), whose sum is σ = 56963633468. Its totient is φ = 13460793720.

The previous prime is 29613746663. The next prime is 29613746671. The reversal of 29613746668 is 86664731692.

It is a happy number.

It is a super-2 number, since 2×29613746668² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29613746663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30592230 + ... + 30593197.

Almost surely, 2^29613746668 is an apocalyptic number.

It is an amenable number.

29613746668 is a deficient number, since it is larger than the sum of its proper divisors (27349886800).

29613746668 is a wasteful number, since it uses less digits than its factorization.

29613746668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61185453 (or 61185440 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 58.

The spelling of 29613746668 in words is "twenty-nine billion, six hundred thirteen million, seven hundred forty-six thousand, six hundred sixty-eight".