29979453252 has 48 divisors (see below), whose sum is σ = 80297441280. Its totient is φ = 8527818912.

The previous prime is 29979453211. The next prime is 29979453253. The reversal of 29979453252 is 25235497992.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 29979453192 and 29979453201.

It is not an unprimeable number, because it can be changed into a prime (29979453253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767052 + ... + 805187.

It is an arithmetic number, because the mean of its divisors is an integer number (1672863360).

Almost surely, 2^29979453252 is an apocalyptic number.

It is an amenable number.

29979453252 is an abundant number, since it is smaller than the sum of its proper divisors (50317988028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29979453252 is a wasteful number, since it uses less digits than its factorization.

29979453252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572480 (or 1572478 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 57.

The spelling of 29979453252 in words is "twenty-nine billion, nine hundred seventy-nine million, four hundred fifty-three thousand, two hundred fifty-two".