244887477912 has 192 divisors, whose sum is σ = 827195016960. Its totient is φ = 63583891200.

The previous prime is 244887477817. The next prime is 244887477917. The reversal of 244887477912 is 219774788442.

244887477912 is a `hidden beast` number, since 2 + 4 + 488 + 74 + 7 + 79 + 12 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 244887477912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244887477917) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19347778 + ... + 19360430.

It is an arithmetic number, because the mean of its divisors is an integer number (4308307380).

Almost surely, 2^244887477912 is an apocalyptic number.

244887477912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 244887477912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413597508480).

244887477912 is an abundant number, since it is smaller than the sum of its proper divisors (582307539048).

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

244887477912 is a wasteful number, since it uses less digits than its factorization.

244887477912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16174 (or 16167 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 63.

The spelling of 244887477912 in words is "two hundred forty-four billion, eight hundred eighty-seven million, four hundred seventy-seven thousand, nine hundred twelve".