994479777742 has 16 divisors (see below), whose sum is σ = 1649622747312. Its totient is φ = 445843984320.

The previous prime is 994479777679. The next prime is 994479777749. The reversal of 994479777742 is 247777974499.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994479777749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309612273 + ... + 309615484.

It is an arithmetic number, because the mean of its divisors is an integer number (103101421707).

Almost surely, 2^994479777742 is an apocalyptic number.

994479777742 is a deficient number, since it is larger than the sum of its proper divisors (655142969570).

994479777742 is a wasteful number, since it uses less digits than its factorization.

994479777742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619227843.

The product of its digits is 1568294784, while the sum is 76.

The spelling of 994479777742 in words is "nine hundred ninety-four billion, four hundred seventy-nine million, seven hundred seventy-seven thousand, seven hundred forty-two".