28746336810 has 32 divisors (see below), whose sum is σ = 69036976512. Its totient is φ = 7660604480.

The previous prime is 28746336733. The next prime is 28746336821. The reversal of 28746336810 is 1863364782.

It is a super-2 number, since 2×28746336810² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28746336810.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271749 + ... + 362408.

It is an arithmetic number, because the mean of its divisors is an integer number (2157405516).

Almost surely, 2^28746336810 is an apocalyptic number.

28746336810 is an abundant number, since it is smaller than the sum of its proper divisors (40290639702).

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

28746336810 is a wasteful number, since it uses less digits than its factorization.

28746336810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635678.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 28746336810 in words is "twenty-eight billion, seven hundred forty-six million, three hundred thirty-six thousand, eight hundred ten".