44778148361856 has 1024 divisors, whose sum is σ = 181288461312000. Its totient is φ = 10529917304832.

The previous prime is 44778148361753. The next prime is 44778148361861. The reversal of 44778148361856 is 65816384187744.

It is a happy number.

44778148361856 is a `hidden beast` number, since 4 + 4 + 7 + 7 + 8 + 1 + 483 + 61 + 85 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 101361805 + ... + 101802611.

It is an arithmetic number, because the mean of its divisors is an integer number (177039513000).

Almost surely, 2^{44778148361856} 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 44778148361856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90644230656000).

44778148361856 is an abundant number, since it is smaller than the sum of its proper divisors (136510312950144).

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

44778148361856 is a wasteful number, since it uses less digits than its factorization.

44778148361856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440886 (or 440868 counting only the distinct ones).

The product of its digits is 867041280, while the sum is 72.

The spelling of 44778148361856 in words is "forty-four trillion, seven hundred seventy-eight billion, one hundred forty-eight million, three hundred sixty-one thousand, eight hundred fifty-six".