27196938026989 has 2 divisors, whose sum is σ = 27196938026990. Its totient is φ = 27196938026988.

The previous prime is 27196938026953. The next prime is 27196938027053. The reversal of 27196938026989 is 98962083969172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26235734258889 + 961203768100 = 5122083^2 + 980410^2 .

It is a cyclic number.

It is not a de Polignac number, because 27196938026989 - 2³⁷ = 27059499073517 is a prime.

It is a super-2 number, since 2×27196938026989² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27196938066989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13598469013494 + 13598469013495.

It is an arithmetic number, because the mean of its divisors is an integer number (13598469013495).

Almost surely, 2^{27196938026989} is an apocalyptic number.

It is an amenable number.

27196938026989 is a deficient number, since it is larger than the sum of its proper divisors (1).

27196938026989 is an equidigital number, since it uses as much as digits as its factorization.

27196938026989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1269789696, while the sum is 79.

The spelling of 27196938026989 in words is "twenty-seven trillion, one hundred ninety-six billion, nine hundred thirty-eight million, twenty-six thousand, nine hundred eighty-nine".