994373677440 has 1280 divisors, whose sum is σ = 4307480432640. Its totient is φ = 215289446400.

The previous prime is 994373677421. The next prime is 994373677463. The reversal of 994373677440 is 44776373499.

994373677440 is a `hidden beast` number, since 9 + 94 + 3 + 7 + 36 + 77 + 440 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 229804557 + ... + 229808883.

It is an arithmetic number, because the mean of its divisors is an integer number (3365219088).

Almost surely, 2^994373677440 is an apocalyptic number.

994373677440 is a gapful number since it is divisible by the number (90) 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 994373677440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2153740216320).

994373677440 is an abundant number, since it is smaller than the sum of its proper divisors (3313106755200).

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

994373677440 is a wasteful number, since it uses less digits than its factorization.

994373677440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413 (or 4392 counting only the distinct ones).

The product of its (nonzero) digits is 96018048, while the sum is 63.

The spelling of 994373677440 in words is "nine hundred ninety-four billion, three hundred seventy-three million, six hundred seventy-seven thousand, four hundred forty".