9994494278 has 8 divisors (see below), whose sum is σ = 14992590672. Its totient is φ = 4996964056.

The previous prime is 9994494269. The next prime is 9994494311. The reversal of 9994494278 is 8724944999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94250 + ... + 169917.

It is an arithmetic number, because the mean of its divisors is an integer number (1874073834).

Almost surely, 2^9994494278 is an apocalyptic number.

9994494278 is a deficient number, since it is larger than the sum of its proper divisors (4998096394).

9994494278 is a wasteful number, since it uses less digits than its factorization.

9994494278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283086.

The product of its digits is 47029248, while the sum is 65.

The square root of 9994494278 is about 99972.4675998347. The cubic root of 9994494278 is about 2154.0392268303.

The spelling of 9994494278 in words is "nine billion, nine hundred ninety-four million, four hundred ninety-four thousand, two hundred seventy-eight".