29976320205 has 48 divisors (see below), whose sum is σ = 56499171456. Its totient is φ = 14614266240.

The previous prime is 29976320123. The next prime is 29976320221. The reversal of 29976320205 is 50202367992.

It is a happy number.

29976320205 is a `hidden beast` number, since 2 + 9 + 9 + 7 + 632 + 0 + 2 + 0 + 5 = 666.

It is not a de Polignac number, because 29976320205 - 2⁹ = 29976319693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188491 + ... + 309000.

It is an arithmetic number, because the mean of its divisors is an integer number (1177066072).

Almost surely, 2^29976320205 is an apocalyptic number.

It is an amenable number.

29976320205 is a deficient number, since it is larger than the sum of its proper divisors (26522851251).

29976320205 is a wasteful number, since it uses less digits than its factorization.

29976320205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497618 (or 497615 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 29976320205 in words is "twenty-nine billion, nine hundred seventy-six million, three hundred twenty thousand, two hundred five".