29993239941081 has 16 divisors (see below), whose sum is σ = 40362779582400. Its totient is φ = 19809641371968.

The previous prime is 29993239941079. The next prime is 29993239941107. The reversal of 29993239941081 is 18014993239992.

It is not a de Polignac number, because 29993239941081 - 2¹ = 29993239941079 is a prime.

It is a super-2 number, since 2×29993239941081² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29993239940997 and 29993239941015.

It is not an unprimeable number, because it can be changed into a prime (29993239941281) 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, 2874211 + ... + 8261208.

It is an arithmetic number, because the mean of its divisors is an integer number (2522673723900).

Almost surely, 2^{29993239941081} is an apocalyptic number.

It is an amenable number.

29993239941081 is a deficient number, since it is larger than the sum of its proper divisors (10369539641319).

29993239941081 is a wasteful number, since it uses less digits than its factorization.

29993239941081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11143768.

The product of its (nonzero) digits is 68024448, while the sum is 69.

The spelling of 29993239941081 in words is "twenty-nine trillion, nine hundred ninety-three billion, two hundred thirty-nine million, nine hundred forty-one thousand, eighty-one".