159438580493 has 8 divisors (see below), whose sum is σ = 168829811640. Its totient is φ = 150048737280.

The previous prime is 159438580487. The next prime is 159438580517. The reversal of 159438580493 is 394085834951.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 61802954404 + 97635626089 = 248602^2 + 312467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159438580493 - 2⁶ = 159438580429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159438580423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105668 + ... + 574493.

It is an arithmetic number, because the mean of its divisors is an integer number (21103726455).

Almost surely, 2^159438580493 is an apocalyptic number.

It is an amenable number.

159438580493 is a deficient number, since it is larger than the sum of its proper divisors (9391231147).

159438580493 is a wasteful number, since it uses less digits than its factorization.

159438580493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693967.

The product of its (nonzero) digits is 18662400, while the sum is 59.

The spelling of 159438580493 in words is "one hundred fifty-nine billion, four hundred thirty-eight million, five hundred eighty thousand, four hundred ninety-three".