4394795621832 has 1280 divisors, whose sum is σ = 16685222400000. Its totient is φ = 1068269368320.

The previous prime is 4394795621809. The next prime is 4394795621899. The reversal of 4394795621832 is 2381265974934.

4394795621832 is a `hidden beast` number, since 4 + 39 + 4 + 7 + 9 + 562 + 1 + 8 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 4394795621832.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 4134332133 + ... + 4134333195.

It is an arithmetic number, because the mean of its divisors is an integer number (13035330000).

Almost surely, 2^{4394795621832} is an apocalyptic number.

4394795621832 is a gapful number since it is divisible by the number (42) 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 4394795621832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8342611200000).

4394795621832 is an abundant number, since it is smaller than the sum of its proper divisors (12290426778168).

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

4394795621832 is a wasteful number, since it uses less digits than its factorization.

4394795621832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1194 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 4394795621832 in words is "four trillion, three hundred ninety-four billion, seven hundred ninety-five million, six hundred twenty-one thousand, eight hundred thirty-two".