869587412042 has 8 divisors (see below), whose sum is σ = 1304392846116. Its totient is φ = 434789796672.

The previous prime is 869587412021. The next prime is 869587412129. The reversal of 869587412042 is 240214785968.

It can be written as a sum of positive squares in 2 ways, for example, as 604147098361 + 265440313681 = 777269^2 + 515209^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668233 + ... + 2126540.

Almost surely, 2^869587412042 is an apocalyptic number.

869587412042 is a deficient number, since it is larger than the sum of its proper divisors (434805434074).

869587412042 is a wasteful number, since it uses less digits than its factorization.

869587412042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909352.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 869587412042 in words is "eight hundred sixty-nine billion, five hundred eighty-seven million, four hundred twelve thousand, forty-two".