27434738507 has 4 divisors (see below), whose sum is σ = 29928805656. Its totient is φ = 24940671360.

The previous prime is 27434738489. The next prime is 27434738519. The reversal of 27434738507 is 70583743472.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27434738507 - 2¹⁰ = 27434737483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27434738587) 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, 1247033558 + ... + 1247033579.

It is an arithmetic number, because the mean of its divisors is an integer number (7482201414).

Almost surely, 2^27434738507 is an apocalyptic number.

27434738507 is a deficient number, since it is larger than the sum of its proper divisors (2494067149).

27434738507 is a wasteful number, since it uses less digits than its factorization.

27434738507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494067148.

The product of its (nonzero) digits is 3951360, while the sum is 50.

The spelling of 27434738507 in words is "twenty-seven billion, four hundred thirty-four million, seven hundred thirty-eight thousand, five hundred seven".