28070375147 has 4 divisors (see below), whose sum is σ = 28096832736. Its totient is φ = 28043917560.

The previous prime is 28070375143. The next prime is 28070375171. The reversal of 28070375147 is 74157307082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74157307082 = 2 ⋅37078653541.

It is a cyclic number.

It is not a de Polignac number, because 28070375147 - 2² = 28070375143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28070375098 and 28070375107.

It is not an unprimeable number, because it can be changed into a prime (28070375143) 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, 13227203 + ... + 13229324.

It is an arithmetic number, because the mean of its divisors is an integer number (7024208184).

Almost surely, 2^28070375147 is an apocalyptic number.

28070375147 is a deficient number, since it is larger than the sum of its proper divisors (26457589).

28070375147 is a wasteful number, since it uses less digits than its factorization.

28070375147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26457588.

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 28070375147 in words is "twenty-eight billion, seventy million, three hundred seventy-five thousand, one hundred forty-seven".