28480412207 has 4 divisors (see below), whose sum is σ = 30671213160. Its totient is φ = 26289611256.

The previous prime is 28480412203. The next prime is 28480412231. The reversal of 28480412207 is 70221408482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70221408482 = 2 ⋅35110704241.

It is a cyclic number.

It is not a de Polignac number, because 28480412207 - 2² = 28480412203 is a prime.

It is a super-2 number, since 2×28480412207² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28480412203) 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, 1095400457 + ... + 1095400482.

It is an arithmetic number, because the mean of its divisors is an integer number (7667803290).

Almost surely, 2^28480412207 is an apocalyptic number.

28480412207 is a deficient number, since it is larger than the sum of its proper divisors (2190800953).

28480412207 is a wasteful number, since it uses less digits than its factorization.

28480412207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190800952.

The product of its (nonzero) digits is 57344, while the sum is 38.

The spelling of 28480412207 in words is "twenty-eight billion, four hundred eighty million, four hundred twelve thousand, two hundred seven".