29779983952 has 20 divisors (see below), whose sum is σ = 59106006036. Its totient is φ = 14526821120.

The previous prime is 29779983881. The next prime is 29779983973. The reversal of 29779983952 is 25938997792.

It can be written as a sum of positive squares in 2 ways, for example, as 4791962176 + 24988021776 = 69224^2 + 158076^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22697503 + ... + 22698814.

Almost surely, 2^29779983952 is an apocalyptic number.

It is an amenable number.

29779983952 is a deficient number, since it is larger than the sum of its proper divisors (29326022084).

29779983952 is a wasteful number, since it uses less digits than its factorization.

29779983952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45396366 (or 45396360 counting only the distinct ones).

The product of its digits is 154314720, while the sum is 70.

The spelling of 29779983952 in words is "twenty-nine billion, seven hundred seventy-nine million, nine hundred eighty-three thousand, nine hundred fifty-two".