671081414237 has 16 divisors (see below), whose sum is σ = 734200716480. Its totient is φ = 609622561152.

The previous prime is 671081414191. The next prime is 671081414251. The reversal of 671081414237 is 732414180176.

It is a cyclic number.

It is not a de Polignac number, because 671081414237 - 2⁶ = 671081414173 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 (671081414257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526814 + ... + 1272672.

It is an arithmetic number, because the mean of its divisors is an integer number (45887544780).

Almost surely, 2^671081414237 is an apocalyptic number.

671081414237 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

671081414237 is a deficient number, since it is larger than the sum of its proper divisors (63119302243).

671081414237 is a wasteful number, since it uses less digits than its factorization.

671081414237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746972.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 671081414237 in words is "six hundred seventy-one billion, eighty-one million, four hundred fourteen thousand, two hundred thirty-seven".