27651315739 has 2 divisors, whose sum is σ = 27651315740. Its totient is φ = 27651315738.

The previous prime is 27651315707. The next prime is 27651315781. The reversal of 27651315739 is 93751315672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27651315739 - 2⁵ = 27651315707 is a prime.

It is a super-2 number, since 2×27651315739² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27651315692 and 27651315701.

It is not a weakly prime, because it can be changed into another prime (27651315539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13825657869 + 13825657870.

It is an arithmetic number, because the mean of its divisors is an integer number (13825657870).

Almost surely, 2^27651315739 is an apocalyptic number.

27651315739 is a deficient number, since it is larger than the sum of its proper divisors (1).

27651315739 is an equidigital number, since it uses as much as digits as its factorization.

27651315739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1190700, while the sum is 49.

The spelling of 27651315739 in words is "twenty-seven billion, six hundred fifty-one million, three hundred fifteen thousand, seven hundred thirty-nine".