671537314126272 has 112 divisors (see below), whose sum is σ = 1938310004991744. Its totient is φ = 203495198208000.

The previous prime is 671537314126249. The next prime is 671537314126397. The reversal of 671537314126272 is 272621413735176.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541046872 + ... + 542286632.

Almost surely, 2^{671537314126272} is an apocalyptic number.

It is an amenable number.

671537314126272 is an abundant number, since it is smaller than the sum of its proper divisors (1266772690865472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671537314126272 is a wasteful number, since it uses less digits than its factorization.

671537314126272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496258 (or 1496248 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 57.

The spelling of 671537314126272 in words is "six hundred seventy-one trillion, five hundred thirty-seven billion, three hundred fourteen million, one hundred twenty-six thousand, two hundred seventy-two".