869470939387 has 4 divisors (see below), whose sum is σ = 869921211096. Its totient is φ = 869020667680.

The previous prime is 869470939369. The next prime is 869470939417. The reversal of 869470939387 is 783939074968.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-869470939387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869470936387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225132958 + ... + 225136819.

It is an arithmetic number, because the mean of its divisors is an integer number (217480302774).

Almost surely, 2^869470939387 is an apocalyptic number.

869470939387 is a deficient number, since it is larger than the sum of its proper divisors (450271709).

869470939387 is a wasteful number, since it uses less digits than its factorization.

869470939387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450271708.

The product of its (nonzero) digits is 493807104, while the sum is 73.

The spelling of 869470939387 in words is "eight hundred sixty-nine billion, four hundred seventy million, nine hundred thirty-nine thousand, three hundred eighty-seven".