29997974071740 has 24 divisors (see below), whose sum is σ = 83994327401040. Its totient is φ = 7999459752448.

The previous prime is 29997974071739. The next prime is 29997974071777. The reversal of 29997974071740 is 4717047979992.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249983117205 + ... + 249983117324.

It is an arithmetic number, because the mean of its divisors is an integer number (3499763641710).

Almost surely, 2^{29997974071740} is an apocalyptic number.

29997974071740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29997974071740 is an abundant number, since it is smaller than the sum of its proper divisors (53996353329300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29997974071740 is a wasteful number, since it uses less digits than its factorization.

29997974071740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499966234541 (or 499966234539 counting only the distinct ones).

The product of its (nonzero) digits is 504094752, while the sum is 75.

The spelling of 29997974071740 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred seventy-four million, seventy-one thousand, seven hundred forty".