29681989741924 has 27 divisors (see below), whose sum is σ = 56246760821433. Its totient is φ = 13699314503472.

The previous prime is 29681989741903. The next prime is 29681989741933. The reversal of 29681989741924 is 42914798918692.

The square root of 29681989741924 is 5448118.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4390826884900 + 25291162857024 = 2095430^2 + 5029032^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 141546297 + ... + 141755839.

Almost surely, 2^{29681989741924} is an apocalyptic number.

29681989741924 is the 5448118-th square number.

It is an amenable number.

29681989741924 is a deficient number, since it is larger than the sum of its proper divisors (26564771079509).

29681989741924 is an frugal number, since it uses more digits than its factorization.

29681989741924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419116 (or 209558 counting only the distinct ones).

The product of its digits is 1128701952, while the sum is 79.

The spelling of 29681989741924 in words is "twenty-nine trillion, six hundred eighty-one billion, nine hundred eighty-nine million, seven hundred forty-one thousand, nine hundred twenty-four".