2394664899840 has 216 divisors, whose sum is σ = 8286443762688. Its totient is φ = 638488473600.

The previous prime is 2394664899817. The next prime is 2394664899863. The reversal of 2394664899840 is 489984664932.

2394664899840 is a `hidden beast` number, since 2 + 3 + 9 + 4 + 66 + 489 + 9 + 84 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2394664899817) and next prime (2394664899863).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153980065 + ... + 153995615.

It is an arithmetic number, because the mean of its divisors is an integer number (38363165568).

Almost surely, 2^{2394664899840} is an apocalyptic number.

2394664899840 is a gapful number since it is divisible by the number (20) 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 2394664899840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4143221881344).

2394664899840 is an abundant number, since it is smaller than the sum of its proper divisors (5891778862848).

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

2394664899840 is a wasteful number, since it uses less digits than its factorization.

2394664899840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28945 (or 28928 counting only the distinct ones).

The product of its (nonzero) digits is 644972544, while the sum is 72.

The spelling of 2394664899840 in words is "two trillion, three hundred ninety-four billion, six hundred sixty-four million, eight hundred ninety-nine thousand, eight hundred forty".