671062507252 has 24 divisors (see below), whose sum is σ = 1175092918272. Its totient is φ = 335321748000.

The previous prime is 671062507231. The next prime is 671062507279. The reversal of 671062507252 is 252705260176.

It is a junction number, because it is equal to n+sod(n) for n = 671062507199 and 671062507208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71820493 + ... + 71829835.

It is an arithmetic number, because the mean of its divisors is an integer number (48962204928).

Almost surely, 2^671062507252 is an apocalyptic number.

It is an amenable number.

671062507252 is a deficient number, since it is larger than the sum of its proper divisors (504030411020).

671062507252 is a wasteful number, since it uses less digits than its factorization.

671062507252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18639 (or 18637 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 671062507252 in words is "six hundred seventy-one billion, sixty-two million, five hundred seven thousand, two hundred fifty-two".