29696978464 has 12 divisors (see below), whose sum is σ = 58465926414. Its totient is φ = 14848489216.

The previous prime is 29696978417. The next prime is 29696978539. The reversal of 29696978464 is 46487969692.

It can be written as a sum of positive squares in only one way, i.e., 29072978064 + 624000400 = 170508^2 + 24980^2 .

It is a junction number, because it is equal to n+sod(n) for n = 29696978393 and 29696978402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464015257 + ... + 464015320.

Almost surely, 2^29696978464 is an apocalyptic number.

It is an amenable number.

29696978464 is a deficient number, since it is larger than the sum of its proper divisors (28768947950).

29696978464 is an equidigital number, since it uses as much as digits as its factorization.

29696978464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928030587 (or 928030579 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 70.

The spelling of 29696978464 in words is "twenty-nine billion, six hundred ninety-six million, nine hundred seventy-eight thousand, four hundred sixty-four".