288921107409488 has 40 divisors (see below), whose sum is σ = 564763155922728. Its totient is φ = 143175888515072.

The previous prime is 288921107409481. The next prime is 288921107409491. The reversal of 288921107409488 is 884904701129882.

It can be written as a sum of positive squares in 4 ways, for example, as 11545805959744 + 277375301449744 = 3397912^2 + 16654588^2 .

It is a super-2 number, since 2×288921107409488² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288921107409481) 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, 38057156 + ... + 45013212.

Almost surely, 2^{288921107409488} is an apocalyptic number.

It is an amenable number.

288921107409488 is a deficient number, since it is larger than the sum of its proper divisors (275842048513240).

288921107409488 is a wasteful number, since it uses less digits than its factorization.

288921107409488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979151 (or 6979145 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 71.

The spelling of 288921107409488 in words is "two hundred eighty-eight trillion, nine hundred twenty-one billion, one hundred seven million, four hundred nine thousand, four hundred eighty-eight".