28901700026 has 8 divisors (see below), whose sum is σ = 43353448884. Its totient is φ = 14450550400.

The previous prime is 28901700011. The next prime is 28901700029. The reversal of 28901700026 is 62000710982.

It is a happy number.

It is a Cunningham number, because it is equal to 170005²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 28901700025 + 1 = 170005^2 + 1^2 .

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 (28901700029) 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, 1226 + ... + 240426.

Almost surely, 2^28901700026 is an apocalyptic number.

28901700026 is a deficient number, since it is larger than the sum of its proper divisors (14451748858).

28901700026 is a wasteful number, since it uses less digits than its factorization.

28901700026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299616.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 28901700026 in words is "twenty-eight billion, nine hundred one million, seven hundred thousand, twenty-six".