28869426827810 has 16 divisors (see below), whose sum is σ = 53369426893176. Its totient is φ = 11235668819328.

The previous prime is 28869426827741. The next prime is 28869426827831. The reversal of 28869426827810 is 1872862496882.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27618167579401 + 1251259248409 = 5255299^2 + 1118597^2 .

It is a super-2 number, since 2×28869426827810² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39012738587 + ... + 39012739326.

Almost surely, 2^{28869426827810} is an apocalyptic number.

28869426827810 is a deficient number, since it is larger than the sum of its proper divisors (24500000065366).

28869426827810 is a wasteful number, since it uses less digits than its factorization.

28869426827810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78025477957.

The product of its (nonzero) digits is 297271296, while the sum is 71.

The spelling of 28869426827810 in words is "twenty-eight trillion, eight hundred sixty-nine billion, four hundred twenty-six million, eight hundred twenty-seven thousand, eight hundred ten".