29997928910869 has 8 divisors (see below), whose sum is σ = 30338800248960. Its totient is φ = 29657142372000.

The previous prime is 29997928910821. The next prime is 29997928910893. The reversal of 29997928910869 is 96801982979992.

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

It is a cyclic number.

It is not a de Polignac number, because 29997928910869 - 2¹³ = 29997928902677 is a prime.

It is a super-2 number, since 2×29997928910869² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29997928910869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29997928910819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20488147 + ... + 21903424.

It is an arithmetic number, because the mean of its divisors is an integer number (3792350031120).

Almost surely, 2^{29997928910869} is an apocalyptic number.

It is an amenable number.

29997928910869 is a deficient number, since it is larger than the sum of its proper divisors (340871338091).

29997928910869 is an equidigital number, since it uses as much as digits as its factorization.

29997928910869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42399611.

The product of its (nonzero) digits is 5714053632, while the sum is 88.

The spelling of 29997928910869 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred twenty-eight million, nine hundred ten thousand, eight hundred sixty-nine".