28972851593 has 8 divisors (see below), whose sum is σ = 33128262912. Its totient is φ = 24821548416.

The previous prime is 28972851587. The next prime is 28972851599. The reversal of 28972851593 is 39515827982.

It is an interprime number because it is at equal distance from previous prime (28972851587) and next prime (28972851599).

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

It is not a de Polignac number, because 28972851593 - 2¹⁶ = 28972786057 is a prime.

It is a super-2 number, since 2×28972851593² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28972851599) 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, 1011905 + ... + 1040142.

It is an arithmetic number, because the mean of its divisors is an integer number (4141032864).

Almost surely, 2^28972851593 is an apocalyptic number.

It is an amenable number.

28972851593 is a deficient number, since it is larger than the sum of its proper divisors (4155411319).

28972851593 is a wasteful number, since it uses less digits than its factorization.

28972851593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054071.

The product of its digits is 10886400, while the sum is 59.

The spelling of 28972851593 in words is "twenty-eight billion, nine hundred seventy-two million, eight hundred fifty-one thousand, five hundred ninety-three".