28464667088291 has 16 divisors (see below), whose sum is σ = 32599717413120. Its totient is φ = 24346814772960.

The previous prime is 28464667088287. The next prime is 28464667088303. The reversal of 28464667088291 is 19288076646482.

It is a cyclic number.

It is not a de Polignac number, because 28464667088291 - 2² = 28464667088287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28464667088251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9870920 + ... + 12424346.

It is an arithmetic number, because the mean of its divisors is an integer number (2037482338320).

Almost surely, 2^{28464667088291} is an apocalyptic number.

28464667088291 is a deficient number, since it is larger than the sum of its proper divisors (4135050324829).

28464667088291 is a wasteful number, since it uses less digits than its factorization.

28464667088291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556794.

The product of its (nonzero) digits is 445906944, while the sum is 71.

The spelling of 28464667088291 in words is "twenty-eight trillion, four hundred sixty-four billion, six hundred sixty-seven million, eighty-eight thousand, two hundred ninety-one".