27948939467 has 2 divisors, whose sum is σ = 27948939468. Its totient is φ = 27948939466.

The previous prime is 27948939461. The next prime is 27948939497. The reversal of 27948939467 is 76493984972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27948939467 - 2⁴ = 27948939451 is a prime.

It is a super-2 number, since 2×27948939467² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27948939397 and 27948939406.

It is not a weakly prime, because it can be changed into another prime (27948939461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13974469733 + 13974469734.

It is an arithmetic number, because the mean of its divisors is an integer number (13974469734).

Almost surely, 2^27948939467 is an apocalyptic number.

27948939467 is a deficient number, since it is larger than the sum of its proper divisors (1).

27948939467 is an equidigital number, since it uses as much as digits as its factorization.

27948939467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164602368, while the sum is 68.

The spelling of 27948939467 in words is "twenty-seven billion, nine hundred forty-eight million, nine hundred thirty-nine thousand, four hundred sixty-seven".