26562135487 has 2 divisors, whose sum is σ = 26562135488. Its totient is φ = 26562135486.

The previous prime is 26562135463. The next prime is 26562135521. The reversal of 26562135487 is 78453126562.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26562135487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26562135487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26562135407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13281067743 + 13281067744.

It is an arithmetic number, because the mean of its divisors is an integer number (13281067744).

Almost surely, 2^26562135487 is an apocalyptic number.

26562135487 is a deficient number, since it is larger than the sum of its proper divisors (1).

26562135487 is an equidigital number, since it uses as much as digits as its factorization.

26562135487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 49.

The spelling of 26562135487 in words is "twenty-six billion, five hundred sixty-two million, one hundred thirty-five thousand, four hundred eighty-seven".