4378346011728 has 120 divisors (see below), whose sum is σ = 13217238995688. Its totient is φ = 1344999591936.

The previous prime is 4378346011693. The next prime is 4378346011729. The reversal of 4378346011728 is 8271106438734.

4378346011728 is a `hidden beast` number, since 4 + 3 + 7 + 8 + 3 + 4 + 601 + 1 + 7 + 28 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 160054404624 + 4218291607104 = 400068^2 + 2053848^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378346011729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 740325 + ... + 3050372.

Almost surely, 2^{4378346011728} is an apocalyptic number.

4378346011728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4378346011728 is an abundant number, since it is smaller than the sum of its proper divisors (8838892983960).

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

4378346011728 is a wasteful number, since it uses less digits than its factorization.

4378346011728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791341 (or 3791332 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 4378346011728 in words is "four trillion, three hundred seventy-eight billion, three hundred forty-six million, eleven thousand, seven hundred twenty-eight".