28801640416555 has 8 divisors (see below), whose sum is σ = 34686740950992. Its totient is φ = 22958130699168.

The previous prime is 28801640416531. The next prime is 28801640416579. The reversal of 28801640416555 is 55561404610882.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28801640416531) and next prime (28801640416579).

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

It is a cyclic number.

It is not a de Polignac number, because 28801640416555 - 2¹³ = 28801640408363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28801640416496 and 28801640416505.

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, 10397702737 + ... + 10397705506.

It is an arithmetic number, because the mean of its divisors is an integer number (4335842618874).

Almost surely, 2^{28801640416555} is an apocalyptic number.

28801640416555 is a deficient number, since it is larger than the sum of its proper divisors (5885100534437).

28801640416555 is a wasteful number, since it uses less digits than its factorization.

28801640416555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20795408525.

The product of its (nonzero) digits is 9216000, while the sum is 55.

The spelling of 28801640416555 in words is "twenty-eight trillion, eight hundred one billion, six hundred forty million, four hundred sixteen thousand, five hundred fifty-five".