27780583037 has 2 divisors, whose sum is σ = 27780583038. Its totient is φ = 27780583036.

The previous prime is 27780583013. The next prime is 27780583049. The reversal of 27780583037 is 73038508772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21460492036 + 6320091001 = 146494^2 + 79499^2 .

It is a cyclic number.

It is not a de Polignac number, because 27780583037 - 2²⁸ = 27512147581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27780583837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13890291518 + 13890291519.

It is an arithmetic number, because the mean of its divisors is an integer number (13890291519).

Almost surely, 2^27780583037 is an apocalyptic number.

It is an amenable number.

27780583037 is a deficient number, since it is larger than the sum of its proper divisors (1).

27780583037 is an equidigital number, since it uses as much as digits as its factorization.

27780583037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 27780583037 in words is "twenty-seven billion, seven hundred eighty million, five hundred eighty-three thousand, thirty-seven".