672857143524 has 72 divisors (see below), whose sum is σ = 1809932342400. Its totient is φ = 210031633152.

The previous prime is 672857143493. The next prime is 672857143531. The reversal of 672857143524 is 425341758276.

672857143524 is a `hidden beast` number, since 6 + 7 + 2 + 8 + 5 + 71 + 43 + 524 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2640624 + ... + 2884199.

It is an arithmetic number, because the mean of its divisors is an integer number (25137949200).

Almost surely, 2^672857143524 is an apocalyptic number.

It is an amenable number.

672857143524 is an abundant number, since it is smaller than the sum of its proper divisors (1137075198876).

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

672857143524 is a wasteful number, since it uses less digits than its factorization.

672857143524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525049 (or 5525044 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The spelling of 672857143524 in words is "six hundred seventy-two billion, eight hundred fifty-seven million, one hundred forty-three thousand, five hundred twenty-four".