27312121037 has 4 divisors (see below), whose sum is σ = 27371885436. Its totient is φ = 27252356640.

The previous prime is 27312121009. The next prime is 27312121049. The reversal of 27312121037 is 73012121372.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13364747236 + 13947373801 = 115606^2 + 118099^2 .

It is a cyclic number.

It is not a de Polignac number, because 27312121037 - 2¹⁶ = 27312055501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27312121237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29881514 + ... + 29882427.

It is an arithmetic number, because the mean of its divisors is an integer number (6842971359).

Almost surely, 2^27312121037 is an apocalyptic number.

It is an amenable number.

27312121037 is a deficient number, since it is larger than the sum of its proper divisors (59764399).

27312121037 is an equidigital number, since it uses as much as digits as its factorization.

27312121037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59764398.

The product of its (nonzero) digits is 3528, while the sum is 29.

The spelling of 27312121037 in words is "twenty-seven billion, three hundred twelve million, one hundred twenty-one thousand, thirty-seven".