671053343481 has 12 divisors (see below), whose sum is σ = 969784192000. Its totient is φ = 447145087320.

The previous prime is 671053343473. The next prime is 671053343501. The reversal of 671053343481 is 184343350176.

671053343481 is a `hidden beast` number, since 6 + 7 + 1 + 0 + 533 + 4 + 34 + 81 = 666.

It is not a de Polignac number, because 671053343481 - 2³ = 671053343473 is a prime.

It is a super-2 number, since 2×671053343481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671053343461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18631705 + ... + 18667686.

Almost surely, 2^671053343481 is an apocalyptic number.

It is an amenable number.

671053343481 is a deficient number, since it is larger than the sum of its proper divisors (298730848519).

671053343481 is a wasteful number, since it uses less digits than its factorization.

671053343481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37301396 (or 37301393 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 671053343481 in words is "six hundred seventy-one billion, fifty-three million, three hundred forty-three thousand, four hundred eighty-one".