29955772113531 has 16 divisors (see below), whose sum is σ = 44021228377728. Its totient is φ = 17967848313600.

The previous prime is 29955772113511. The next prime is 29955772113557. The reversal of 29955772113531 is 13531127755992.

It is not a de Polignac number, because 29955772113531 - 2⁶ = 29955772113467 is a prime.

It is a super-2 number, since 2×29955772113531² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29955772113511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4679123965 + ... + 4679130366.

It is an arithmetic number, because the mean of its divisors is an integer number (2751326773608).

Almost surely, 2^{29955772113531} is an apocalyptic number.

29955772113531 is a deficient number, since it is larger than the sum of its proper divisors (14065456264197).

29955772113531 is a wasteful number, since it uses less digits than its factorization.

29955772113531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358254442.

The product of its digits is 17860500, while the sum is 60.

The spelling of 29955772113531 in words is "twenty-nine trillion, nine hundred fifty-five billion, seven hundred seventy-two million, one hundred thirteen thousand, five hundred thirty-one".