29720719113 has 16 divisors (see below), whose sum is σ = 40026420096. Its totient is φ = 19614551040.

The previous prime is 29720719111. The next prime is 29720719139. The reversal of 29720719113 is 31191702792.

It is a happy number.

It is not a de Polignac number, because 29720719113 - 2¹ = 29720719111 is a prime.

It is a super-2 number, since 2×29720719113² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29720719111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954003 + ... + 984663.

It is an arithmetic number, because the mean of its divisors is an integer number (2501651256).

Almost surely, 2^29720719113 is an apocalyptic number.

It is an amenable number.

29720719113 is a deficient number, since it is larger than the sum of its proper divisors (10305700983).

29720719113 is a wasteful number, since it uses less digits than its factorization.

29720719113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33904.

The product of its (nonzero) digits is 47628, while the sum is 42.

The spelling of 29720719113 in words is "twenty-nine billion, seven hundred twenty million, seven hundred nineteen thousand, one hundred thirteen".