29970935237 has 4 divisors (see below), whose sum is σ = 29971288620. Its totient is φ = 29970581856.

The previous prime is 29970935173. The next prime is 29970935257. The reversal of 29970935237 is 73253907992.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13566192676 + 16404742561 = 116474^2 + 128081^2 .

It is a cyclic number.

It is not a de Polignac number, because 29970935237 - 2⁶ = 29970935173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29970935257) 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 3 ways as a sum of consecutive naturals, for example, 35339 + ... + 247367.

It is an arithmetic number, because the mean of its divisors is an integer number (7492822155).

It is a Poulet number, since it divides 2^29970935236-1.

Almost surely, 2^29970935237 is an apocalyptic number.

29970935237 is the 141353-rd pentagonal number.

It is an amenable number.

29970935237 is a deficient number, since it is larger than the sum of its proper divisors (353383).

29970935237 is a wasteful number, since it uses less digits than its factorization.

29970935237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353382.

The product of its (nonzero) digits is 6429780, while the sum is 56.

The spelling of 29970935237 in words is "twenty-nine billion, nine hundred seventy million, nine hundred thirty-five thousand, two hundred thirty-seven".