671317763545452 has 96 divisors (see below), whose sum is σ = 1692692827987392. Its totient is φ = 206287270199296.

The previous prime is 671317763545439. The next prime is 671317763545489. The reversal of 671317763545452 is 254545367713176.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45940983 + ... + 58764014.

It is an arithmetic number, because the mean of its divisors is an integer number (17632216958202).

Almost surely, 2^{671317763545452} is an apocalyptic number.

It is an amenable number.

671317763545452 is an abundant number, since it is smaller than the sum of its proper divisors (1021375064441940).

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

671317763545452 is a wasteful number, since it uses less digits than its factorization.

671317763545452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104705667 (or 104705665 counting only the distinct ones).

The product of its digits is 444528000, while the sum is 66.

The spelling of 671317763545452 in words is "six hundred seventy-one trillion, three hundred seventeen billion, seven hundred sixty-three million, five hundred forty-five thousand, four hundred fifty-two".