28663269826 has 8 divisors (see below), whose sum is σ = 43333447680. Its totient is φ = 14218787268.

The previous prime is 28663269823. The next prime is 28663269827. The reversal of 28663269826 is 62896236682.

28663269826 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (28663269823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56423506 + ... + 56424013.

It is an arithmetic number, because the mean of its divisors is an integer number (5416680960).

Almost surely, 2^28663269826 is an apocalyptic number.

28663269826 is a deficient number, since it is larger than the sum of its proper divisors (14670177854).

28663269826 is a wasteful number, since it uses less digits than its factorization.

28663269826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112847648.

The product of its digits is 17915904, while the sum is 58.

The spelling of 28663269826 in words is "twenty-eight billion, six hundred sixty-three million, two hundred sixty-nine thousand, eight hundred twenty-six".