29717999953 has 4 divisors (see below), whose sum is σ = 29819426868. Its totient is φ = 29616573040.

The previous prime is 29717999939. The next prime is 29717999963. The reversal of 29717999953 is 35999971792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18172927249 + 11545072704 = 134807^2 + 107448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29717999953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29717999963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50713018 + ... + 50713603.

It is an arithmetic number, because the mean of its divisors is an integer number (7454856717).

Almost surely, 2^29717999953 is an apocalyptic number.

It is an amenable number.

29717999953 is a deficient number, since it is larger than the sum of its proper divisors (101426915).

29717999953 is a wasteful number, since it uses less digits than its factorization.

29717999953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101426914.

The product of its digits is 86802030, while the sum is 70.

The spelling of 29717999953 in words is "twenty-nine billion, seven hundred seventeen million, nine hundred ninety-nine thousand, nine hundred fifty-three".