28464202480451 has 4 divisors (see below), whose sum is σ = 28555142424792. Its totient is φ = 28373262536112.

The previous prime is 28464202480433. The next prime is 28464202480487. The reversal of 28464202480451 is 15408420246482.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28464202480451 is a prime.

It is a super-2 number, since 2×28464202480451² (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 28464202480451.

It is not an unprimeable number, because it can be changed into a prime (28464202480951) 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, 45469971701 + ... + 45469972326.

It is an arithmetic number, because the mean of its divisors is an integer number (7138785606198).

Almost surely, 2^{28464202480451} is an apocalyptic number.

28464202480451 is a deficient number, since it is larger than the sum of its proper divisors (90939944341).

28464202480451 is an equidigital number, since it uses as much as digits as its factorization.

28464202480451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90939944340.

The product of its (nonzero) digits is 3932160, while the sum is 50.

The spelling of 28464202480451 in words is "twenty-eight trillion, four hundred sixty-four billion, two hundred two million, four hundred eighty thousand, four hundred fifty-one".