1026987726239 has 2 divisors, whose sum is σ = 1026987726240. Its totient is φ = 1026987726238.

The previous prime is 1026987726211. The next prime is 1026987726251. The reversal of 1026987726239 is 9326277896201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1026987726239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026987726269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513493863119 + 513493863120.

It is an arithmetic number, because the mean of its divisors is an integer number (513493863120).

Almost surely, 2^{1026987726239} is an apocalyptic number.

1026987726239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026987726239 is an equidigital number, since it uses as much as digits as its factorization.

1026987726239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 1026987726239 in words is "one trillion, twenty-six billion, nine hundred eighty-seven million, seven hundred twenty-six thousand, two hundred thirty-nine".