29657894212 has 6 divisors (see below), whose sum is σ = 51901314878. Its totient is φ = 14828947104.

The previous prime is 29657894183. The next prime is 29657894237. The reversal of 29657894212 is 21249875692.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19542362436 + 10115531776 = 139794^2 + 100576^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3707236773 + ... + 3707236780.

Almost surely, 2^29657894212 is an apocalyptic number.

It is an amenable number.

29657894212 is a deficient number, since it is larger than the sum of its proper divisors (22243420666).

29657894212 is a wasteful number, since it uses less digits than its factorization.

29657894212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7414473557 (or 7414473555 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 55.

The spelling of 29657894212 in words is "twenty-nine billion, six hundred fifty-seven million, eight hundred ninety-four thousand, two hundred twelve".