29907749290 has 16 divisors (see below), whose sum is σ = 57000651912. Its totient is φ = 11259387904.

The previous prime is 29907749269. The next prime is 29907749299. The reversal of 29907749290 is 9294770992.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24707752969 + 5199996321 = 157187^2 + 72111^2 .

It is not an unprimeable number, because it can be changed into a prime (29907749299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87963799 + ... + 87964138.

Almost surely, 2^29907749290 is an apocalyptic number.

29907749290 is a deficient number, since it is larger than the sum of its proper divisors (27092902622).

29907749290 is a wasteful number, since it uses less digits than its factorization.

29907749290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175927961.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The spelling of 29907749290 in words is "twenty-nine billion, nine hundred seven million, seven hundred forty-nine thousand, two hundred ninety".