870081018 has 32 divisors (see below), whose sum is σ = 1753989120. Its totient is φ = 287731440.

The previous prime is 870081013. The next prime is 870081127. The reversal of 870081018 is 810180078.

It is a self number, because there is not a number n which added to its sum of digits gives 870081018.

It is not an unprimeable number, because it can be changed into a prime (870081013) 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, 557323 + ... + 558881.

It is an arithmetic number, because the mean of its divisors is an integer number (54812160).

Almost surely, 2^870081018 is an apocalyptic number.

870081018 is an abundant number, since it is smaller than the sum of its proper divisors (883908102).

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

870081018 is a wasteful number, since it uses less digits than its factorization.

870081018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242.

The product of its (nonzero) digits is 3584, while the sum is 33.

The square root of 870081018 is about 29497.1357592564. The cubic root of 870081018 is about 954.6699033669.

The spelling of 870081018 in words is "eight hundred seventy million, eighty-one thousand, eighteen".