27145395751 has 2 divisors, whose sum is σ = 27145395752. Its totient is φ = 27145395750.

The previous prime is 27145395721. The next prime is 27145395791. The reversal of 27145395751 is 15759354172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27145395751 - 2¹³ = 27145387559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27145395695 and 27145395704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27145395701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13572697875 + 13572697876.

It is an arithmetic number, because the mean of its divisors is an integer number (13572697876).

Almost surely, 2^27145395751 is an apocalyptic number.

27145395751 is a deficient number, since it is larger than the sum of its proper divisors (1).

27145395751 is an equidigital number, since it uses as much as digits as its factorization.

27145395751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1323000, while the sum is 49.

The spelling of 27145395751 in words is "twenty-seven billion, one hundred forty-five million, three hundred ninety-five thousand, seven hundred fifty-one".