29844678964 has 12 divisors (see below), whose sum is σ = 52609416804. Its totient is φ = 14813417024.

The previous prime is 29844678947. The next prime is 29844678977. The reversal of 29844678964 is 46987644892.

It can be written as a sum of positive squares in 2 ways, for example, as 11915468964 + 17929210000 = 109158^2 + 133900^2 .

It is a super-2 number, since 2×29844678964² (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 29844678964.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27229999 + ... + 27231094.

It is an arithmetic number, because the mean of its divisors is an integer number (4384118067).

Almost surely, 2^29844678964 is an apocalyptic number.

It is an amenable number.

29844678964 is a deficient number, since it is larger than the sum of its proper divisors (22764737840).

29844678964 is a wasteful number, since it uses less digits than its factorization.

29844678964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54461234 (or 54461232 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 67.

The spelling of 29844678964 in words is "twenty-nine billion, eight hundred forty-four million, six hundred seventy-eight thousand, nine hundred sixty-four".