28467007686 has 64 divisors (see below), whose sum is σ = 68729250240. Its totient is φ = 8681541120.

The previous prime is 28467007663. The next prime is 28467007687. The reversal of 28467007686 is 68670076482.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28467007687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100105 + ... + 258756.

It is an arithmetic number, because the mean of its divisors is an integer number (1073894535).

Almost surely, 2^28467007686 is an apocalyptic number.

28467007686 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28467007686 is an abundant number, since it is smaller than the sum of its proper divisors (40262242554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28467007686 is a wasteful number, since it uses less digits than its factorization.

28467007686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358998 (or 358992 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 28467007686 in words is "twenty-eight billion, four hundred sixty-seven million, seven thousand, six hundred eighty-six".