29987914519993 has 4 divisors (see below), whose sum is σ = 30496184257680. Its totient is φ = 29479644782308.

The previous prime is 29987914519991. The next prime is 29987914520041. The reversal of 29987914519993 is 39991541978992.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 29987914519993 - 2¹ = 29987914519991 is a prime.

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 29987914519993.

It is not an unprimeable number, because it can be changed into a prime (29987914519991) 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, 254134868755 + ... + 254134868872.

It is an arithmetic number, because the mean of its divisors is an integer number (7624046064420).

Almost surely, 2^{29987914519993} is an apocalyptic number.

It is an amenable number.

29987914519993 is a deficient number, since it is larger than the sum of its proper divisors (508269737687).

29987914519993 is an equidigital number, since it uses as much as digits as its factorization.

29987914519993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508269737686.

The product of its digits is 3571283520, while the sum is 85.

The spelling of 29987914519993 in words is "twenty-nine trillion, nine hundred eighty-seven billion, nine hundred fourteen million, five hundred nineteen thousand, nine hundred ninety-three".