838472419884 has 96 divisors (see below), whose sum is σ = 2287067602176. Its totient is φ = 236255303680.

The previous prime is 838472419781. The next prime is 838472419921. The reversal of 838472419884 is 488914274838.

It is a super-2 number, since 2×838472419884² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2064657 + ... + 2437160.

It is an arithmetic number, because the mean of its divisors is an integer number (23823620856).

Almost surely, 2^838472419884 is an apocalyptic number.

It is an amenable number.

838472419884 is an abundant number, since it is smaller than the sum of its proper divisors (1448595182292).

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

838472419884 is a wasteful number, since it uses less digits than its factorization.

838472419884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501935 (or 4501933 counting only the distinct ones).

The product of its digits is 99090432, while the sum is 66.

The spelling of 838472419884 in words is "eight hundred thirty-eight billion, four hundred seventy-two million, four hundred nineteen thousand, eight hundred eighty-four".