3940518022650 has 432 divisors, whose sum is σ = 12592581648192. Its totient is φ = 913735468800.

The previous prime is 3940518022591. The next prime is 3940518022667. The reversal of 3940518022650 is 562208150493.

3940518022650 is a `hidden beast` number, since 3 + 9 + 405 + 18 + 0 + 226 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3940518022596 and 3940518022605.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 33755182 + ... + 33871718.

It is an arithmetic number, because the mean of its divisors is an integer number (29149494556).

Almost surely, 2^{3940518022650} is an apocalyptic number.

3940518022650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3940518022650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6296290824096).

3940518022650 is an abundant number, since it is smaller than the sum of its proper divisors (8652063625542).

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

3940518022650 is a wasteful number, since it uses less digits than its factorization.

3940518022650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116609 (or 116581 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 3940518022650 in words is "three trillion, nine hundred forty billion, five hundred eighteen million, twenty-two thousand, six hundred fifty".