1131563642639 has 2 divisors, whose sum is σ = 1131563642640. Its totient is φ = 1131563642638.

The previous prime is 1131563642633. The next prime is 1131563642719. The reversal of 1131563642639 is 9362463651311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131563642639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131563642633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565781821319 + 565781821320.

It is an arithmetic number, because the mean of its divisors is an integer number (565781821320).

Almost surely, 2^{1131563642639} is an apocalyptic number.

1131563642639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131563642639 is an equidigital number, since it uses as much as digits as its factorization.

1131563642639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 50.

The spelling of 1131563642639 in words is "one trillion, one hundred thirty-one billion, five hundred sixty-three million, six hundred forty-two thousand, six hundred thirty-nine".