28730171486 has 8 divisors (see below), whose sum is σ = 43320887424. Its totient is φ = 14289875680.

The previous prime is 28730171467. The next prime is 28730171527. The reversal of 28730171486 is 68417103782.

It is a happy number.

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

It is a super-2 number, since 2×28730171486² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28730171486.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 37604555 + ... + 37605318.

It is an arithmetic number, because the mean of its divisors is an integer number (5415110928).

Almost surely, 2^28730171486 is an apocalyptic number.

28730171486 is a deficient number, since it is larger than the sum of its proper divisors (14590715938).

28730171486 is a wasteful number, since it uses less digits than its factorization.

28730171486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75210066.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 28730171486 in words is "twenty-eight billion, seven hundred thirty million, one hundred seventy-one thousand, four hundred eighty-six".