28976915086441 has 9 divisors (see below), whose sum is σ = 33707883831741. Its totient is φ = 24837323490252.

The previous prime is 28976915086391. The next prime is 28976915086453. The reversal of 28976915086441 is 14468051967982.

The square root of 28976915086441 is 5383021.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 28976915086441 - 2²³ = 28976906697833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28976915086241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 37296646 + ... + 38065648.

It is an arithmetic number, because the mean of its divisors is an integer number (3745320425749).

Almost surely, 2^{28976915086441} is an apocalyptic number.

28976915086441 is the 5383021-st square number.

28976915086441 is the 2691511-st centered octagonal number.

It is an amenable number.

28976915086441 is a deficient number, since it is larger than the sum of its proper divisors (4730968745300).

28976915086441 is an frugal number, since it uses more digits than its factorization.

28976915086441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538020 (or 769010 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 70.

The spelling of 28976915086441 in words is "twenty-eight trillion, nine hundred seventy-six billion, nine hundred fifteen million, eighty-six thousand, four hundred forty-one".