28379479226 has 32 divisors (see below), whose sum is σ = 49140241920. Its totient is φ = 12040657200.

The previous prime is 28379479211. The next prime is 28379479237. The reversal of 28379479226 is 62297497382.

It is a happy number.

It is a super-2 number, since 2×28379479226² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749981 + ... + 786911.

It is an arithmetic number, because the mean of its divisors is an integer number (1535632560).

Almost surely, 2^28379479226 is an apocalyptic number.

28379479226 is a deficient number, since it is larger than the sum of its proper divisors (20760762694).

28379479226 is a wasteful number, since it uses less digits than its factorization.

28379479226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37490.

The product of its digits is 18289152, while the sum is 59.

The spelling of 28379479226 in words is "twenty-eight billion, three hundred seventy-nine million, four hundred seventy-nine thousand, two hundred twenty-six".