671272851042 has 64 divisors (see below), whose sum is σ = 1560613824000. Its totient is φ = 213655397760.

The previous prime is 671272850881. The next prime is 671272851061. The reversal of 671272851042 is 240158272176.

671272851042 is a `hidden beast` number, since 6 + 7 + 127 + 2 + 8 + 510 + 4 + 2 = 666.

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, 3121417 + ... + 3329532.

It is an arithmetic number, because the mean of its divisors is an integer number (24384591000).

Almost surely, 2^671272851042 is an apocalyptic number.

671272851042 is an abundant number, since it is smaller than the sum of its proper divisors (889340972958).

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

671272851042 is a wasteful number, since it uses less digits than its factorization.

671272851042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451048 (or 6451042 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 671272851042 in words is "six hundred seventy-one billion, two hundred seventy-two million, eight hundred fifty-one thousand, forty-two".