13028645835 has 24 divisors (see below), whose sum is σ = 22745464560. Its totient is φ = 6898617792.

The previous prime is 13028645813. The next prime is 13028645837. The reversal of 13028645835 is 53854682031.

13028645835 is a `hidden beast` number, since 1 + 3 + 0 + 2 + 8 + 64 + 583 + 5 = 666.

It is not a de Polignac number, because 13028645835 - 2¹⁴ = 13028629451 is a prime.

It is a super-2 number, since 2×13028645835² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (13028645837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1035204 + ... + 1047713.

It is an arithmetic number, because the mean of its divisors is an integer number (947727690).

Almost surely, 2^13028645835 is an apocalyptic number.

13028645835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13028645835 is a deficient number, since it is larger than the sum of its proper divisors (9716818725).

13028645835 is a wasteful number, since it uses less digits than its factorization.

13028645835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083067 (or 2083064 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

It can be divided in two parts, 130286 and 45835, that added together give a triangular number (176121 = T₅₉₃).

The spelling of 13028645835 in words is "thirteen billion, twenty-eight million, six hundred forty-five thousand, eight hundred thirty-five".