844469887954 has 24 divisors (see below), whose sum is σ = 1607469584688. Its totient is φ = 329014241640.

The previous prime is 844469887907. The next prime is 844469887957. The reversal of 844469887954 is 459788964448.

It is a super-2 number, since 2×844469887954² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (844469887957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391682544 + ... + 391684699.

It is an arithmetic number, because the mean of its divisors is an integer number (66977899362).

Almost surely, 2^844469887954 is an apocalyptic number.

844469887954 is a deficient number, since it is larger than the sum of its proper divisors (762999696734).

844469887954 is a wasteful number, since it uses less digits than its factorization.

844469887954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783367270 (or 783367263 counting only the distinct ones).

The product of its digits is 2229534720, while the sum is 76.

The spelling of 844469887954 in words is "eight hundred forty-four billion, four hundred sixty-nine million, eight hundred eighty-seven thousand, nine hundred fifty-four".