28726486832612 has 6 divisors (see below), whose sum is σ = 50271351957078. Its totient is φ = 14363243416304.

The previous prime is 28726486832551. The next prime is 28726486832623. The reversal of 28726486832612 is 21623868462782.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18936196277476 + 9790290555136 = 4351574^2 + 3128944^2 .

It is a super-2 number, since 2×28726486832612² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3590810854073 + ... + 3590810854080.

It is an arithmetic number, because the mean of its divisors is an integer number (8378558659513).

Almost surely, 2^{28726486832612} is an apocalyptic number.

It is an amenable number.

28726486832612 is a deficient number, since it is larger than the sum of its proper divisors (21544865124466).

28726486832612 is a wasteful number, since it uses less digits than its factorization.

28726486832612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7181621708157 (or 7181621708155 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 65.

The spelling of 28726486832612 in words is "twenty-eight trillion, seven hundred twenty-six billion, four hundred eighty-six million, eight hundred thirty-two thousand, six hundred twelve".