869742784134 has 72 divisors (see below), whose sum is σ = 2251357045392. Its totient is φ = 237693661920.

The previous prime is 869742784033. The next prime is 869742784147. The reversal of 869742784134 is 431487247968.

869742784134 is a `hidden beast` number, since 86 + 9 + 74 + 2 + 78 + 413 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6457657 + ... + 6590964.

Almost surely, 2^869742784134 is an apocalyptic number.

869742784134 is an abundant number, since it is smaller than the sum of its proper divisors (1381614261258).

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

869742784134 is a wasteful number, since it uses less digits than its factorization.

869742784134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13048682 (or 13048656 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 63.

The spelling of 869742784134 in words is "eight hundred sixty-nine billion, seven hundred forty-two million, seven hundred eighty-four thousand, one hundred thirty-four".