869820850770 has 16 divisors (see below), whose sum is σ = 2087570041920. Its totient is φ = 231952226864.

The previous prime is 869820850699. The next prime is 869820850777. The reversal of 869820850770 is 77058028968.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (869820850777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14497014150 + ... + 14497014209.

It is an arithmetic number, because the mean of its divisors is an integer number (130473127620).

Almost surely, 2^869820850770 is an apocalyptic number.

869820850770 is an abundant number, since it is smaller than the sum of its proper divisors (1217749191150).

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

869820850770 is a wasteful number, since it uses less digits than its factorization.

869820850770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28994028369.

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 869820850770 in words is "eight hundred sixty-nine billion, eight hundred twenty million, eight hundred fifty thousand, seven hundred seventy".