2101546944 has 280 divisors, whose sum is σ = 7368783840. Its totient is φ = 579446784.

The previous prime is 2101546913. The next prime is 2101546957. The reversal of 2101546944 is 4496451012.

2101546944 is a `hidden beast` number, since 2 + 101 + 546 + 9 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2101546899 and 2101546908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1051354 + ... + 1053350.

Almost surely, 2^2101546944 is an apocalyptic number.

2101546944 is a gapful number since it is divisible by the number (24) 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 2101546944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3684391920).

2101546944 is an abundant number, since it is smaller than the sum of its proper divisors (5267236896).

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

2101546944 is a wasteful number, since it uses less digits than its factorization.

2101546944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2101546944 is about 45842.6323851500. The cubic root of 2101546944 is about 1280.8935297543.

Adding to 2101546944 its reverse (4496451012), we get a palindrome (6597997956).

The spelling of 2101546944 in words is "two billion, one hundred one million, five hundred forty-six thousand, nine hundred forty-four".