28363691807 has 16 divisors (see below), whose sum is σ = 31537465344. Its totient is φ = 25292820000.

The previous prime is 28363691753. The next prime is 28363691819. The reversal of 28363691807 is 70819636382.

It is a cyclic number.

It is not a de Polignac number, because 28363691807 - 2⁶ = 28363691743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28363691827) 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, 61682 + ... + 246032.

It is an arithmetic number, because the mean of its divisors is an integer number (1971091584).

Almost surely, 2^28363691807 is an apocalyptic number.

28363691807 is a deficient number, since it is larger than the sum of its proper divisors (3173773537).

28363691807 is a wasteful number, since it uses less digits than its factorization.

28363691807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184630.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 28363691807 in words is "twenty-eight billion, three hundred sixty-three million, six hundred ninety-one thousand, eight hundred seven".