159438896957 has 4 divisors (see below), whose sum is σ = 161684515296. Its totient is φ = 157193278620.

The previous prime is 159438896927. The next prime is 159438896977. The reversal of 159438896957 is 759698834951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159438896957 - 2⁶ = 159438896893 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 (159438896927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122809063 + ... + 1122809204.

It is an arithmetic number, because the mean of its divisors is an integer number (40421128824).

Almost surely, 2^159438896957 is an apocalyptic number.

It is an amenable number.

159438896957 is a deficient number, since it is larger than the sum of its proper divisors (2245618339).

159438896957 is an equidigital number, since it uses as much as digits as its factorization.

159438896957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245618338.

The product of its digits is 587865600, while the sum is 74.

The spelling of 159438896957 in words is "one hundred fifty-nine billion, four hundred thirty-eight million, eight hundred ninety-six thousand, nine hundred fifty-seven".