28426633308601 has 4 divisors (see below), whose sum is σ = 31010872700304. Its totient is φ = 25842393916900.

The previous prime is 28426633308581. The next prime is 28426633308613. The reversal of 28426633308601 is 10680333662482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28426633308601 - 2²¹ = 28426631211449 is a prime.

It is a super-2 number, since 2×28426633308601² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28426633308001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292119695835 + ... + 1292119695856.

It is an arithmetic number, because the mean of its divisors is an integer number (7752718175076).

Almost surely, 2^{28426633308601} is an apocalyptic number.

It is an amenable number.

28426633308601 is a deficient number, since it is larger than the sum of its proper divisors (2584239391703).

28426633308601 is a wasteful number, since it uses less digits than its factorization.

28426633308601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584239391702.

The product of its (nonzero) digits is 5971968, while the sum is 52.

The spelling of 28426633308601 in words is "twenty-eight trillion, four hundred twenty-six billion, six hundred thirty-three million, three hundred eight thousand, six hundred one".