994966350399 has 192 divisors, whose sum is σ = 1800225423360. Its totient is φ = 516949413120.

The previous prime is 994966350347. The next prime is 994966350407. The reversal of 994966350399 is 993053669499.

It is a happy number.

994966350399 is a `hidden beast` number, since 9 + 94 + 96 + 63 + 5 + 0 + 399 = 666.

It is a Cunningham number, because it is equal to 997480²-1.

It is not a de Polignac number, because 994966350399 - 2⁸ = 994966350143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994966350799) 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, 890748189 + ... + 890749305.

It is an arithmetic number, because the mean of its divisors is an integer number (9376174080).

Almost surely, 2^994966350399 is an apocalyptic number.

994966350399 is a deficient number, since it is larger than the sum of its proper divisors (805259072961).

994966350399 is a wasteful number, since it uses less digits than its factorization.

994966350399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 382637520, while the sum is 72.

The spelling of 994966350399 in words is "nine hundred ninety-four billion, nine hundred sixty-six million, three hundred fifty thousand, three hundred ninety-nine".