874724872642 has 8 divisors (see below), whose sum is σ = 1312091970876. Its totient is φ = 437360882352.

The previous prime is 874724872639. The next prime is 874724872649. The reversal of 874724872642 is 246278427478.

It can be written as a sum of positive squares in 2 ways, for example, as 867206075121 + 7518797521 = 931239^2 + 86711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (874724872649) 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 3 ways as a sum of consecutive naturals, for example, 145848 + ... + 1330684.

Almost surely, 2^874724872642 is an apocalyptic number.

874724872642 is a deficient number, since it is larger than the sum of its proper divisors (437367098234).

874724872642 is a wasteful number, since it uses less digits than its factorization.

874724872642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553972.

The product of its digits is 67436544, while the sum is 61.

The spelling of 874724872642 in words is "eight hundred seventy-four billion, seven hundred twenty-four million, eight hundred seventy-two thousand, six hundred forty-two".