28070375149 has 8 divisors (see below), whose sum is σ = 28127728440. Its totient is φ = 28013051136.

The previous prime is 28070375143. The next prime is 28070375171. The reversal of 28070375149 is 94157307082.

It can be written as a sum of positive squares in 4 ways, for example, as 4101762025 + 23968613124 = 64045^2 + 154818^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28070375149 - 2¹³ = 28070366957 is a prime.

It is a super-2 number, since 2×28070375149² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28070375099 and 28070375108.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3772737 + ... + 3780169.

It is an arithmetic number, because the mean of its divisors is an integer number (3515966055).

Almost surely, 2^28070375149 is an apocalyptic number.

It is an amenable number.

28070375149 is a deficient number, since it is larger than the sum of its proper divisors (57353291).

28070375149 is an equidigital number, since it uses as much as digits as its factorization.

28070375149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14639.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 28070375149 in words is "twenty-eight billion, seventy million, three hundred seventy-five thousand, one hundred forty-nine".