27631726123 has 2 divisors, whose sum is σ = 27631726124. Its totient is φ = 27631726122.

The previous prime is 27631726079. The next prime is 27631726127. The reversal of 27631726123 is 32162713672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27631726123 is a prime.

It is a super-2 number, since 2×27631726123² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27631726127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13815863061 + 13815863062.

It is an arithmetic number, because the mean of its divisors is an integer number (13815863062).

Almost surely, 2^27631726123 is an apocalyptic number.

27631726123 is a deficient number, since it is larger than the sum of its proper divisors (1).

27631726123 is an equidigital number, since it uses as much as digits as its factorization.

27631726123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The spelling of 27631726123 in words is "twenty-seven billion, six hundred thirty-one million, seven hundred twenty-six thousand, one hundred twenty-three".