29997974071690 has 8 divisors (see below), whose sum is σ = 53996353329060. Its totient is φ = 11999189628672.

The previous prime is 29997974071679. The next prime is 29997974071739. The reversal of 29997974071690 is 9617047979992.

It can be written as a sum of positive squares in 2 ways, for example, as 26961775855729 + 3036198215961 = 5192473^2 + 1742469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×29997974071690² (a number of 28 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 29997974071690.

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, 1499898703575 + ... + 1499898703594.

Almost surely, 2^{29997974071690} is an apocalyptic number.

29997974071690 is a deficient number, since it is larger than the sum of its proper divisors (23998379257370).

29997974071690 is a wasteful number, since it uses less digits than its factorization.

29997974071690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999797407176.

The product of its (nonzero) digits is 972182736, while the sum is 79.

The spelling of 29997974071690 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred seventy-four million, seventy-one thousand, six hundred ninety".