44778987339 has 8 divisors (see below), whose sum is σ = 62301199872. Its totient is φ = 28554716520.

The previous prime is 44778987313. The next prime is 44778987359. The reversal of 44778987339 is 93378987744.

It is a happy number.

44778987339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 44778987339 - 2⁵ = 44778987307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69), and also a Moran number because the ratio is a prime number: 648970831 = 44778987339 / (4 + 4 + 7 + 7 + 8 + 9 + 8 + 7 + 3 + 3 + 9).

It is not an unprimeable number, because it can be changed into a prime (44778987359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324485347 + ... + 324485484.

It is an arithmetic number, because the mean of its divisors is an integer number (7787649984).

Almost surely, 2^44778987339 is an apocalyptic number.

44778987339 is a deficient number, since it is larger than the sum of its proper divisors (17522212533).

44778987339 is a wasteful number, since it uses less digits than its factorization.

44778987339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648970857.

The product of its digits is 256048128, while the sum is 69.

The spelling of 44778987339 in words is "forty-four billion, seven hundred seventy-eight million, nine hundred eighty-seven thousand, three hundred thirty-nine".