28706316738836 has 24 divisors (see below), whose sum is σ = 54803530768896. Its totient is φ = 13048191873920.

The previous prime is 28706316738833. The next prime is 28706316738887. The reversal of 28706316738836 is 63883761360782.

It is a super-3 number, since 3×28706316738836³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28706316738833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053005 + ... + 7649931.

It is an arithmetic number, because the mean of its divisors is an integer number (2283480448704).

Almost surely, 2^{28706316738836} is an apocalyptic number.

It is an amenable number.

28706316738836 is a deficient number, since it is larger than the sum of its proper divisors (26097214030060).

28706316738836 is a wasteful number, since it uses less digits than its factorization.

28706316738836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6695839 (or 6695837 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 68.

The spelling of 28706316738836 in words is "twenty-eight trillion, seven hundred six billion, three hundred sixteen million, seven hundred thirty-eight thousand, eight hundred thirty-six".