27902037893 has 2 divisors, whose sum is σ = 27902037894. Its totient is φ = 27902037892.

The previous prime is 27902037841. The next prime is 27902037941. The reversal of 27902037893 is 39873020972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23998037569 + 3904000324 = 154913^2 + 62482^2 .

It is a cyclic number.

It is not a de Polignac number, because 27902037893 - 2¹⁸ = 27901775749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27902033893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13951018946 + 13951018947.

It is an arithmetic number, because the mean of its divisors is an integer number (13951018947).

Almost surely, 2^27902037893 is an apocalyptic number.

It is an amenable number.

27902037893 is a deficient number, since it is larger than the sum of its proper divisors (1).

27902037893 is an equidigital number, since it uses as much as digits as its factorization.

27902037893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 27902037893 in words is "twenty-seven billion, nine hundred two million, thirty-seven thousand, eight hundred ninety-three".