26973653387 has 2 divisors, whose sum is σ = 26973653388. Its totient is φ = 26973653386.

The previous prime is 26973653363. The next prime is 26973653407. The reversal of 26973653387 is 78335637962.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26973653387 - 2⁶ = 26973653323 is a prime.

It is not a weakly prime, because it can be changed into another prime (26973653327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13486826693 + 13486826694.

It is an arithmetic number, because the mean of its divisors is an integer number (13486826694).

Almost surely, 2^26973653387 is an apocalyptic number.

26973653387 is a deficient number, since it is larger than the sum of its proper divisors (1).

26973653387 is an equidigital number, since it uses as much as digits as its factorization.

26973653387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 59.

The spelling of 26973653387 in words is "twenty-six billion, nine hundred seventy-three million, six hundred fifty-three thousand, three hundred eighty-seven".