44978288321 has 2 divisors, whose sum is σ = 44978288322. Its totient is φ = 44978288320.

The previous prime is 44978288317. The next prime is 44978288353. The reversal of 44978288321 is 12388287944.

44978288321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38401889296 + 6576399025 = 195964^2 + 81095^2 .

It is a cyclic number.

It is not a de Polignac number, because 44978288321 - 2² = 44978288317 is a prime.

It is not a weakly prime, because it can be changed into another prime (44978288371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22489144160 + 22489144161.

It is an arithmetic number, because the mean of its divisors is an integer number (22489144161).

Almost surely, 2^44978288321 is an apocalyptic number.

It is an amenable number.

44978288321 is a deficient number, since it is larger than the sum of its proper divisors (1).

44978288321 is an equidigital number, since it uses as much as digits as its factorization.

44978288321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6193152, while the sum is 56.

The spelling of 44978288321 in words is "forty-four billion, nine hundred seventy-eight million, two hundred eighty-eight thousand, three hundred twenty-one".