28362586161 has 96 divisors (see below), whose sum is σ = 48642198528. Its totient is φ = 14562737280.

The previous prime is 28362586103. The next prime is 28362586199. The reversal of 28362586161 is 16168526382.

It is a happy number.

It is not a de Polignac number, because 28362586161 - 2⁷ = 28362586033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28362586161.

It is not an unprimeable number, because it can be changed into a prime (28362584161) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44948316 + ... + 44948946.

It is an arithmetic number, because the mean of its divisors is an integer number (506689568).

Almost surely, 2^28362586161 is an apocalyptic number.

28362586161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28362586161 is a deficient number, since it is larger than the sum of its proper divisors (20279612367).

28362586161 is a wasteful number, since it uses less digits than its factorization.

28362586161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1244 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The spelling of 28362586161 in words is "twenty-eight billion, three hundred sixty-two million, five hundred eighty-six thousand, one hundred sixty-one".