9994622042 has 4 divisors (see below), whose sum is σ = 14991933066. Its totient is φ = 4997311020.

The previous prime is 9994622023. The next prime is 9994622069. The reversal of 9994622042 is 2402264999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2402264999 = 5881 ⋅408479.

It can be written as a sum of positive squares in only one way, i.e., 9994200841 + 421201 = 99971^2 + 649^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498655509 + ... + 2498655512.

Almost surely, 2^9994622042 is an apocalyptic number.

9994622042 is a deficient number, since it is larger than the sum of its proper divisors (4997311024).

9994622042 is a wasteful number, since it uses less digits than its factorization.

9994622042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4997311023.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 9994622042 is about 99973.1065937235. The cubic root of 9994622042 is about 2154.0484054670.

The spelling of 9994622042 in words is "nine billion, nine hundred ninety-four million, six hundred twenty-two thousand, forty-two".