48444278821 has 8 divisors (see below), whose sum is σ = 49829800824. Its totient is φ = 47062768320.

The previous prime is 48444278819. The next prime is 48444278903. The reversal of 48444278821 is 12887244484.

It can be written as a sum of positive squares in 4 ways, for example, as 9309548196 + 39134730625 = 96486^2 + 197825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48444278821 - 2¹ = 48444278819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48444275821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 978370 + ... + 1026691.

It is an arithmetic number, because the mean of its divisors is an integer number (6228725103).

Almost surely, 2^48444278821 is an apocalyptic number.

It is an amenable number.

48444278821 is a deficient number, since it is larger than the sum of its proper divisors (1385522003).

48444278821 is a wasteful number, since it uses less digits than its factorization.

48444278821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005751.

The product of its digits is 3670016, while the sum is 52.

The spelling of 48444278821 in words is "forty-eight billion, four hundred forty-four million, two hundred seventy-eight thousand, eight hundred twenty-one".