28057745145 has 8 divisors (see below), whose sum is σ = 44892392256. Its totient is φ = 14964130736.

The previous prime is 28057745141. The next prime is 28057745153. The reversal of 28057745145 is 54154775082.

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 28057745145 - 2² = 28057745141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28057745094 and 28057745103.

It is not an unprimeable number, because it can be changed into a prime (28057745141) 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, 935258157 + ... + 935258186.

It is an arithmetic number, because the mean of its divisors is an integer number (5611549032).

Almost surely, 2^28057745145 is an apocalyptic number.

It is an amenable number.

28057745145 is a deficient number, since it is larger than the sum of its proper divisors (16834647111).

28057745145 is a wasteful number, since it uses less digits than its factorization.

28057745145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870516351.

The product of its (nonzero) digits is 1568000, while the sum is 48.

The spelling of 28057745145 in words is "twenty-eight billion, fifty-seven million, seven hundred forty-five thousand, one hundred forty-five".