994479777850 has 24 divisors (see below), whose sum is σ = 1992019494780. Its totient is φ = 367192533120.

The previous prime is 994479777757. The next prime is 994479777913. The reversal of 994479777850 is 58777974499.

It can be written as a sum of positive squares in 6 ways, for example, as 102741404089 + 891738373761 = 320533^2 + 944319^2 .

It is a hoax number, since the sum of its digits (76) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 764983795 + ... + 764985094.

Almost surely, 2^994479777850 is an apocalyptic number.

994479777850 is an abundant number, since it is smaller than the sum of its proper divisors (997539716930).

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

994479777850 is a wasteful number, since it uses less digits than its factorization.

994479777850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529968914 (or 1529968909 counting only the distinct ones).

The product of its (nonzero) digits is 1120210560, while the sum is 76.

The spelling of 994479777850 in words is "nine hundred ninety-four billion, four hundred seventy-nine million, seven hundred seventy-seven thousand, eight hundred fifty".