28086137263007 has 4 divisors (see below), whose sum is σ = 28086507609480. Its totient is φ = 28085766916536.

The previous prime is 28086137262991. The next prime is 28086137263031. The reversal of 28086137263007 is 70036273168082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28086137263007 - 2⁴ = 28086137262991 is a prime.

It is a super-2 number, since 2×28086137263007² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28086137263007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086137263057) 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, 185059457 + ... + 185211162.

It is an arithmetic number, because the mean of its divisors is an integer number (7021626902370).

Almost surely, 2^{28086137263007} is an apocalyptic number.

28086137263007 is a deficient number, since it is larger than the sum of its proper divisors (370346473).

28086137263007 is an equidigital number, since it uses as much as digits as its factorization.

28086137263007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370346472.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 28086137263007 in words is "twenty-eight trillion, eighty-six billion, one hundred thirty-seven million, two hundred sixty-three thousand, seven".