3618328371840 has 3840 divisors, whose sum is σ = 17491674816000. Its totient is φ = 704310018048.

The previous prime is 3618328371809. The next prime is 3618328371871. The reversal of 3618328371840 is 481738238163.

It is a happy number.

3618328371840 is a `hidden beast` number, since 3 + 6 + 183 + 283 + 7 + 184 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (3618328371809) and next prime (3618328371871).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 45801624921 + ... + 45801624999.

It is an arithmetic number, because the mean of its divisors is an integer number (4555123650).

Almost surely, 2^{3618328371840} is an apocalyptic number.

3618328371840 is a gapful number since it is divisible by the number (30) 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 3618328371840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8745837408000).

3618328371840 is an abundant number, since it is smaller than the sum of its proper divisors (13873346444160).

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

3618328371840 is a wasteful number, since it uses less digits than its factorization.

3618328371840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 3618328371840 in words is "three trillion, six hundred eighteen billion, three hundred twenty-eight million, three hundred seventy-one thousand, eight hundred forty".