28551451171 has 16 divisors (see below), whose sum is σ = 29957400000. Its totient is φ = 27176155776.

The previous prime is 28551451079. The next prime is 28551451177. The reversal of 28551451171 is 17115415582.

It is a cyclic number.

It is not a de Polignac number, because 28551451171 - 2¹³ = 28551442979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28551451177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606345 + ... + 651733.

It is an arithmetic number, because the mean of its divisors is an integer number (1872337500).

Almost surely, 2^28551451171 is an apocalyptic number.

28551451171 is a deficient number, since it is larger than the sum of its proper divisors (1405948829).

28551451171 is a wasteful number, since it uses less digits than its factorization.

28551451171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45726.

The product of its digits is 56000, while the sum is 40.

The spelling of 28551451171 in words is "twenty-eight billion, five hundred fifty-one million, four hundred fifty-one thousand, one hundred seventy-one".