28174312545 has 32 divisors (see below), whose sum is σ = 47912217600. Its totient is φ = 14097219264.

The previous prime is 28174312541. The next prime is 28174312547. The reversal of 28174312545 is 54521347182.

It is not a de Polignac number, because 28174312545 - 2² = 28174312541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28174312497 and 28174312506.

It is not an unprimeable number, because it can be changed into a prime (28174312541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450535 + ... + 509244.

It is an arithmetic number, because the mean of its divisors is an integer number (1497256800).

Almost surely, 2^28174312545 is an apocalyptic number.

It is an amenable number.

28174312545 is a deficient number, since it is larger than the sum of its proper divisors (19737905055).

28174312545 is a wasteful number, since it uses less digits than its factorization.

28174312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959909.

The product of its digits is 268800, while the sum is 42.

The spelling of 28174312545 in words is "twenty-eight billion, one hundred seventy-four million, three hundred twelve thousand, five hundred forty-five".