28763617553 has 8 divisors (see below), whose sum is σ = 32226559680. Its totient is φ = 25442020080.

The previous prime is 28763617529. The next prime is 28763617601. The reversal of 28763617553 is 35571636782.

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 28763617553 - 2⁸ = 28763617297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28763617495 and 28763617504.

It is not an unprimeable number, because it can be changed into a prime (28763617513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35335733 + ... + 35336546.

It is an arithmetic number, because the mean of its divisors is an integer number (4028319960).

Almost surely, 2^28763617553 is an apocalyptic number.

It is an amenable number.

28763617553 is a deficient number, since it is larger than the sum of its proper divisors (3462942127).

28763617553 is a wasteful number, since it uses less digits than its factorization.

28763617553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70672327.

The product of its digits is 6350400, while the sum is 53.

The spelling of 28763617553 in words is "twenty-eight billion, seven hundred sixty-three million, six hundred seventeen thousand, five hundred fifty-three".