29668720951 has 8 divisors (see below), whose sum is σ = 32074293680. Its totient is φ = 27347554368.

The previous prime is 29668720931. The next prime is 29668720969. The reversal of 29668720951 is 15902786692.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29668720951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29668720892 and 29668720901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29668720931) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 21100806 + ... + 21102211.

It is an arithmetic number, because the mean of its divisors is an integer number (4009286710).

Almost surely, 2^29668720951 is an apocalyptic number.

29668720951 is a deficient number, since it is larger than the sum of its proper divisors (2405572729).

29668720951 is a wasteful number, since it uses less digits than its factorization.

29668720951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42203073.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 29668720951 in words is "twenty-nine billion, six hundred sixty-eight million, seven hundred twenty thousand, nine hundred fifty-one".