28669454638363 has 48 divisors (see below), whose sum is σ = 40549616323200. Its totient is φ = 19919109530880.

The previous prime is 28669454638309. The next prime is 28669454638369. The reversal of 28669454638363 is 36383645496682.

It is not a de Polignac number, because 28669454638363 - 2²¹ = 28669452541211 is a prime.

It is a super-2 number, since 2×28669454638363² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (73) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28669454638369) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82163493 + ... + 82511686.

It is an arithmetic number, because the mean of its divisors is an integer number (844783673400).

Almost surely, 2^{28669454638363} is an apocalyptic number.

28669454638363 is a deficient number, since it is larger than the sum of its proper divisors (11880161684837).

28669454638363 is a wasteful number, since it uses less digits than its factorization.

28669454638363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164675240 (or 164675233 counting only the distinct ones).

The product of its digits is 3224862720, while the sum is 73.

The spelling of 28669454638363 in words is "twenty-eight trillion, six hundred sixty-nine billion, four hundred fifty-four million, six hundred thirty-eight thousand, three hundred sixty-three".