3818697087744 has 1728 divisors, whose sum is σ = 14957166551040. Its totient is φ = 939390566400.

The previous prime is 3818697087743. The next prime is 3818697087811. The reversal of 3818697087744 is 4477807968183.

3818697087744 is a `hidden beast` number, since 381 + 8 + 69 + 70 + 87 + 7 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (3818697087743) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 9618884154 + ... + 9618884550.

It is an arithmetic number, because the mean of its divisors is an integer number (8655767680).

Almost surely, 2^{3818697087744} 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 3818697087744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7478583275520).

3818697087744 is an abundant number, since it is smaller than the sum of its proper divisors (11138469463296).

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

3818697087744 is a wasteful number, since it uses less digits than its factorization.

3818697087744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 455196672, while the sum is 72.

The spelling of 3818697087744 in words is "three trillion, eight hundred eighteen billion, six hundred ninety-seven million, eighty-seven thousand, seven hundred forty-four".