870142775041 has 16 divisors (see below), whose sum is σ = 915124550400. Its totient is φ = 825780510720.

The previous prime is 870142775039. The next prime is 870142775069. The reversal of 870142775041 is 140577241078.

It is a 4-Lehmer number, since φ(870142775041) divides (870142775041-1)⁴.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 870142775041 - 2¹ = 870142775039 is a prime.

It is a deceptive number, since it divides R_870142775040.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 870142774982 and 870142775000.

It is not an unprimeable number, because it can be changed into a prime (870142775441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1346401 + ... + 1884961.

It is an arithmetic number, because the mean of its divisors is an integer number (57195284400).

It is a Poulet number, since it divides 2^870142775040-1.

Almost surely, 2^870142775041 is an apocalyptic number.

870142775041 is the 538561-st octagonal number.

It is an amenable number.

870142775041 is a deficient number, since it is larger than the sum of its proper divisors (44981775359).

870142775041 is a wasteful number, since it uses less digits than its factorization.

870142775041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539136.

The product of its (nonzero) digits is 439040, while the sum is 46.

The spelling of 870142775041 in words is "eight hundred seventy billion, one hundred forty-two million, seven hundred seventy-five thousand, forty-one".