838498284887 has 4 divisors (see below), whose sum is σ = 874954732080. Its totient is φ = 802041837696.

The previous prime is 838498284881. The next prime is 838498284889. The reversal of 838498284887 is 788482894838.

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

It is a cyclic number.

It is not a de Polignac number, because 838498284887 - 2²⁴ = 838481507671 is a prime.

It is a super-2 number, since 2×838498284887² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838498284881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18228223562 + ... + 18228223607.

It is an arithmetic number, because the mean of its divisors is an integer number (218738683020).

Almost surely, 2^838498284887 is an apocalyptic number.

838498284887 is a deficient number, since it is larger than the sum of its proper divisors (36456447193).

838498284887 is a wasteful number, since it uses less digits than its factorization.

838498284887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36456447192.

The product of its digits is 1585446912, while the sum is 77.

The spelling of 838498284887 in words is "eight hundred thirty-eight billion, four hundred ninety-eight million, two hundred eighty-four thousand, eight hundred eighty-seven".