27374740973 has 2 divisors, whose sum is σ = 27374740974. Its totient is φ = 27374740972.

The previous prime is 27374740961. The next prime is 27374741021. The reversal of 27374740973 is 37904747372.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16691864809 + 10682876164 = 129197^2 + 103358^2 .

It is a cyclic number.

It is not a de Polignac number, because 27374740973 - 2⁸ = 27374740717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27374743973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13687370486 + 13687370487.

It is an arithmetic number, because the mean of its divisors is an integer number (13687370487).

Almost surely, 2^27374740973 is an apocalyptic number.

It is an amenable number.

27374740973 is a deficient number, since it is larger than the sum of its proper divisors (1).

27374740973 is an equidigital number, since it uses as much as digits as its factorization.

27374740973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6223392, while the sum is 53.

The spelling of 27374740973 in words is "twenty-seven billion, three hundred seventy-four million, seven hundred forty thousand, nine hundred seventy-three".