27071240402 has 32 divisors (see below), whose sum is σ = 44181981360. Its totient is φ = 12388239360.

The previous prime is 27071240381. The next prime is 27071240407. The reversal of 27071240402 is 20404217072.

It can be written as a sum of positive squares in 8 ways, for example, as 24859513561 + 2211726841 = 157669^2 + 47029^2 .

It is not an unprimeable number, because it can be changed into a prime (27071240407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2789174 + ... + 2798862.

Almost surely, 2^27071240402 is an apocalyptic number.

27071240402 is a deficient number, since it is larger than the sum of its proper divisors (17110740958).

27071240402 is a wasteful number, since it uses less digits than its factorization.

27071240402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11966.

The product of its (nonzero) digits is 6272, while the sum is 29.

Adding to 27071240402 its reverse (20404217072), we get a palindrome (47475457474).

The spelling of 27071240402 in words is "twenty-seven billion, seventy-one million, two hundred forty thousand, four hundred two".