7825445287 has 8 divisors (see below), whose sum is σ = 9039017232. Its totient is φ = 6695568000.

The previous prime is 7825445267. The next prime is 7825445333.

7825445287 is nontrivially palindromic in base 10.

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

It is a de Polignac number, because none of the positive numbers 2^k-7825445287 is a prime.

It is a super-3 number, since 3×7825445287³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7825445237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20923464 + ... + 20923837.

It is an arithmetic number, because the mean of its divisors is an integer number (1129877154).

Almost surely, 2^7825445287 is an apocalyptic number.

7825445287 is a deficient number, since it is larger than the sum of its proper divisors (1213571945).

7825445287 is a wasteful number, since it uses less digits than its factorization.

7825445287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41847329.

The product of its digits is 5017600, while the sum is 52.

The square root of 7825445287 is about 88461.5469398993. The cubic root of 7825445287 is about 1985.3466761636.

The spelling of 7825445287 in words is "seven billion, eight hundred twenty-five million, four hundred forty-five thousand, two hundred eighty-seven".