671010074440 has 32 divisors (see below), whose sum is σ = 1509836069880. Its totient is φ = 268392758272.

The previous prime is 671010074381. The next prime is 671010074447. The reversal of 671010074440 is 44470010176.

It can be written as a sum of positive squares in 4 ways, for example, as 669251614084 + 1758460356 = 818078^2 + 41934^2 .

It is a junction number, because it is equal to n+sod(n) for n = 671010074396 and 671010074405.

It is not an unprimeable number, because it can be changed into a prime (671010074447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647184 + ... + 1326976.

Almost surely, 2^671010074440 is an apocalyptic number.

It is an amenable number.

671010074440 is an abundant number, since it is smaller than the sum of its proper divisors (838825995440).

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

671010074440 is a wasteful number, since it uses less digits than its factorization.

671010074440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704481 (or 704477 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 671010074440 in words is "six hundred seventy-one billion, ten million, seventy-four thousand, four hundred forty".