15801381359 has 2 divisors, whose sum is σ = 15801381360. Its totient is φ = 15801381358.

The previous prime is 15801381353. The next prime is 15801381373. The reversal of 15801381359 is 95318310851.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15801381359 - 2³² = 11506414063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15801381353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7900690679 + 7900690680.

It is an arithmetic number, because the mean of its divisors is an integer number (7900690680).

Almost surely, 2^15801381359 is an apocalyptic number.

15801381359 is a deficient number, since it is larger than the sum of its proper divisors (1).

15801381359 is an equidigital number, since it uses as much as digits as its factorization.

15801381359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 44.

The spelling of 15801381359 in words is "fifteen billion, eight hundred one million, three hundred eighty-one thousand, three hundred fifty-nine".