28613651226 has 16 divisors (see below), whose sum is σ = 57243897984. Its totient is φ = 9535117824.

The previous prime is 28613651197. The next prime is 28613651263. The reversal of 28613651226 is 62215631682.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669010 + ... + 710493.

It is an arithmetic number, because the mean of its divisors is an integer number (3577743624).

Almost surely, 2^28613651226 is an apocalyptic number.

28613651226 is an abundant number, since it is smaller than the sum of its proper divisors (28630246758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28613651226 is a wasteful number, since it uses less digits than its factorization.

28613651226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382965.

The product of its digits is 207360, while the sum is 42.

The spelling of 28613651226 in words is "twenty-eight billion, six hundred thirteen million, six hundred fifty-one thousand, two hundred twenty-six".