28767432606784 has 63 divisors (see below), whose sum is σ = 57225441298063. Its totient is φ = 14348510105600.

The previous prime is 28767432606763. The next prime is 28767432606823. The reversal of 28767432606784 is 48760623476782.

The square root of 28767432606784 is 5363528.

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

It can be written as a sum of positive squares in 4 ways, for example, as 22551785272384 + 6215647334400 = 4748872^2 + 2493120^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32653158024 + ... + 32653158904.

Almost surely, 2^{28767432606784} is an apocalyptic number.

28767432606784 is the 5363528-th square number.

It is an amenable number.

28767432606784 is a deficient number, since it is larger than the sum of its proper divisors (28458008691279).

28767432606784 is an frugal number, since it uses more digits than its factorization.

28767432606784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 910393344, while the sum is 70.

The spelling of 28767432606784 in words is "twenty-eight trillion, seven hundred sixty-seven billion, four hundred thirty-two million, six hundred six thousand, seven hundred eighty-four".