157271546434 has 4 divisors (see below), whose sum is σ = 235907319654. Its totient is φ = 78635773216.

The previous prime is 157271546423. The next prime is 157271546449. The reversal of 157271546434 is 434645172751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 152644145809 + 4627400625 = 390697^2 + 68025^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39317886607 + ... + 39317886610.

Almost surely, 2^157271546434 is an apocalyptic number.

157271546434 is a deficient number, since it is larger than the sum of its proper divisors (78635773220).

157271546434 is an equidigital number, since it uses as much as digits as its factorization.

157271546434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78635773219.

The product of its digits is 2822400, while the sum is 49.

The spelling of 157271546434 in words is "one hundred fifty-seven billion, two hundred seventy-one million, five hundred forty-six thousand, four hundred thirty-four".