44276813820 has 144 divisors (see below), whose sum is σ = 143030422080. Its totient is φ = 11048245248.

The previous prime is 44276813773. The next prime is 44276813839. The reversal of 44276813820 is 2831867244.

It is a happy number.

44276813820 is a `hidden beast` number, since 442 + 76 + 8 + 138 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 487561 + ... + 571199.

It is an arithmetic number, because the mean of its divisors is an integer number (993266820).

Almost surely, 2^44276813820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44276813820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71515211040).

44276813820 is an abundant number, since it is smaller than the sum of its proper divisors (98753608260).

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

44276813820 is a wasteful number, since it uses less digits than its factorization.

44276813820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83844 (or 83839 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 44276813820 in words is "forty-four billion, two hundred seventy-six million, eight hundred thirteen thousand, eight hundred twenty".