27426164537 has 2 divisors, whose sum is σ = 27426164538. Its totient is φ = 27426164536.

The previous prime is 27426164503. The next prime is 27426164569. The reversal of 27426164537 is 73546162472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13975731961 + 13450432576 = 118219^2 + 115976^2 .

It is a cyclic number.

It is not a de Polignac number, because 27426164537 - 2¹² = 27426160441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27426164491 and 27426164500.

It is not a weakly prime, because it can be changed into another prime (27426164237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13713082268 + 13713082269.

It is an arithmetic number, because the mean of its divisors is an integer number (13713082269).

Almost surely, 2^27426164537 is an apocalyptic number.

It is an amenable number.

27426164537 is a deficient number, since it is larger than the sum of its proper divisors (1).

27426164537 is an equidigital number, since it uses as much as digits as its factorization.

27426164537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 47.

The spelling of 27426164537 in words is "twenty-seven billion, four hundred twenty-six million, one hundred sixty-four thousand, five hundred thirty-seven".