26277878623 has 2 divisors, whose sum is σ = 26277878624. Its totient is φ = 26277878622.

The previous prime is 26277878609. The next prime is 26277878633. The reversal of 26277878623 is 32687877262.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26277878623 - 2¹³ = 26277870431 is a prime.

It is a super-2 number, since 2×26277878623² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26277878633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13138939311 + 13138939312.

It is an arithmetic number, because the mean of its divisors is an integer number (13138939312).

Almost surely, 2^26277878623 is an apocalyptic number.

26277878623 is a deficient number, since it is larger than the sum of its proper divisors (1).

26277878623 is an equidigital number, since it uses as much as digits as its factorization.

26277878623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18966528, while the sum is 58.

The spelling of 26277878623 in words is "twenty-six billion, two hundred seventy-seven million, eight hundred seventy-eight thousand, six hundred twenty-three".