28693612590771 has 32 divisors (see below), whose sum is σ = 42279600621888. Its totient is φ = 17233307586560.

The previous prime is 28693612590757. The next prime is 28693612590779. The reversal of 28693612590771 is 17709521639682.

It is a happy number.

It is not a de Polignac number, because 28693612590771 - 2⁹ = 28693612590259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28693612590779) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129346116 + ... + 129567761.

It is an arithmetic number, because the mean of its divisors is an integer number (1321237519434).

Almost surely, 2^{28693612590771} is an apocalyptic number.

28693612590771 is a deficient number, since it is larger than the sum of its proper divisors (13585988031117).

28693612590771 is a wasteful number, since it uses less digits than its factorization.

28693612590771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258913991.

The product of its (nonzero) digits is 68584320, while the sum is 66.

The spelling of 28693612590771 in words is "twenty-eight trillion, six hundred ninety-three billion, six hundred twelve million, five hundred ninety thousand, seven hundred seventy-one".