4373681393640 has 384 divisors, whose sum is σ = 14978582208000. Its totient is φ = 1018380819456.

The previous prime is 4373681393633. The next prime is 4373681393671. The reversal of 4373681393640 is 463931863734.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 263165251 + ... + 263181869.

It is an arithmetic number, because the mean of its divisors is an integer number (39006724500).

Almost surely, 2^{4373681393640} is an apocalyptic number.

4373681393640 is a gapful number since it is divisible by the number (40) 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 4373681393640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7489291104000).

4373681393640 is an abundant number, since it is smaller than the sum of its proper divisors (10604900814360).

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

4373681393640 is a wasteful number, since it uses less digits than its factorization.

4373681393640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17361 (or 17344 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 57.

The spelling of 4373681393640 in words is "four trillion, three hundred seventy-three billion, six hundred eighty-one million, three hundred ninety-three thousand, six hundred forty".