994805770353408 has 432 divisors, whose sum is σ = 3172869401083200. Its totient is φ = 297776304193536.

The previous prime is 994805770353401. The next prime is 994805770353431. The reversal of 994805770353408 is 804353077508499.

994805770353408 is a `hidden beast` number, since 9 + 9 + 4 + 8 + 0 + 577 + 0 + 3 + 5 + 3 + 40 + 8 = 666.

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 (994805770353401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7738663918 + ... + 7738792466.

It is an arithmetic number, because the mean of its divisors is an integer number (7344605095100).

Almost surely, 2^{994805770353408} 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 994805770353408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1586434700541600).

994805770353408 is an abundant number, since it is smaller than the sum of its proper divisors (2178063630729792).

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

994805770353408 is a wasteful number, since it uses less digits than its factorization.

994805770353408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135604 (or 135587 counting only the distinct ones).

The product of its (nonzero) digits is 914457600, while the sum is 72.

The spelling of 994805770353408 in words is "nine hundred ninety-four trillion, eight hundred five billion, seven hundred seventy million, three hundred fifty-three thousand, four hundred eight".