4099394093824 has 72 divisors (see below), whose sum is σ = 8376124336272. Its totient is φ = 2001299865600.

The previous prime is 4099394093813. The next prime is 4099394093827. The reversal of 4099394093824 is 4283904939904.

It is a super-2 number, since 2×4099394093824² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (4099394093827) 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, 30766932 + ... + 30899884.

It is an arithmetic number, because the mean of its divisors is an integer number (116335060226).

Almost surely, 2^{4099394093824} 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 4099394093824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4188062168136).

4099394093824 is an abundant number, since it is smaller than the sum of its proper divisors (4276730242448).

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

4099394093824 is a wasteful number, since it uses less digits than its factorization.

4099394093824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135813 (or 135799 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 64.

The spelling of 4099394093824 in words is "four trillion, ninety-nine billion, three hundred ninety-four million, ninety-three thousand, eight hundred twenty-four".