44378664264 has 192 divisors, whose sum is σ = 138544136640. Its totient is φ = 13194005760.

The previous prime is 44378664229. The next prime is 44378664277. The reversal of 44378664264 is 46246687344.

44378664264 is a `hidden beast` number, since 4 + 4 + 378 + 6 + 6 + 4 + 264 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 44378664264.

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, 1113774 + ... + 1152930.

It is an arithmetic number, because the mean of its divisors is an integer number (721584045).

Almost surely, 2^44378664264 is an apocalyptic number.

44378664264 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44378664264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69272068320).

44378664264 is an abundant number, since it is smaller than the sum of its proper divisors (94165472376).

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

44378664264 is a wasteful number, since it uses less digits than its factorization.

44378664264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39242 (or 39226 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 54.

The spelling of 44378664264 in words is "forty-four billion, three hundred seventy-eight million, six hundred sixty-four thousand, two hundred sixty-four".