8978491922 has 8 divisors (see below), whose sum is σ = 14053291776. Its totient is φ = 4294061332.

The previous prime is 8978491919. The next prime is 8978491931. The reversal of 8978491922 is 2291948798.

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

It is a super-2 number, since 2×8978491922² (a number of 21 digits) contains 22 as substring.

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, 97592258 + ... + 97592349.

It is an arithmetic number, because the mean of its divisors is an integer number (1756661472).

Almost surely, 2^8978491922 is an apocalyptic number.

8978491922 is a deficient number, since it is larger than the sum of its proper divisors (5074799854).

8978491922 is a wasteful number, since it uses less digits than its factorization.

8978491922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195184632.

The product of its digits is 5225472, while the sum is 59.

The square root of 8978491922 is about 94754.9044746498. The cubic root of 8978491922 is about 2078.4255159751.

The spelling of 8978491922 in words is "eight billion, nine hundred seventy-eight million, four hundred ninety-one thousand, nine hundred twenty-two".