29959575983949 has 4 divisors (see below), whose sum is σ = 39946101311936. Its totient is φ = 19973050655964.

The previous prime is 29959575983947. The next prime is 29959575984047. The reversal of 29959575983949 is 94938957595992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 29959575983949 - 2¹ = 29959575983947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29959575983947) 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, 4993262663989 + ... + 4993262663994.

It is an arithmetic number, because the mean of its divisors is an integer number (9986525327984).

Almost surely, 2^{29959575983949} is an apocalyptic number.

It is an amenable number.

29959575983949 is a deficient number, since it is larger than the sum of its proper divisors (9986525327987).

29959575983949 is an equidigital number, since it uses as much as digits as its factorization.

29959575983949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9986525327986.

The product of its digits is 89282088000, while the sum is 93.

The spelling of 29959575983949 in words is "twenty-nine trillion, nine hundred fifty-nine billion, five hundred seventy-five million, nine hundred eighty-three thousand, nine hundred forty-nine".