28533926551 has 8 divisors (see below), whose sum is σ = 30932348384. Its totient is φ = 26164576800.

The previous prime is 28533926537. The next prime is 28533926557. The reversal of 28533926551 is 15562933582.

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 28533926551 - 2²¹ = 28531829399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28533926495 and 28533926504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28533926557) 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, 7265976 + ... + 7269901.

It is an arithmetic number, because the mean of its divisors is an integer number (3866543548).

Almost surely, 2^28533926551 is an apocalyptic number.

28533926551 is a deficient number, since it is larger than the sum of its proper divisors (2398421833).

28533926551 is a wasteful number, since it uses less digits than its factorization.

28533926551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14536041.

The product of its digits is 1944000, while the sum is 49.

The spelling of 28533926551 in words is "twenty-eight billion, five hundred thirty-three million, nine hundred twenty-six thousand, five hundred fifty-one".