28477063993 has 12 divisors (see below), whose sum is σ = 32586935808. Its totient is φ = 24377650920.

The previous prime is 28477063981. The next prime is 28477063999. The reversal of 28477063993 is 39936077482.

It is not a de Polignac number, because 28477063993 - 2¹³ = 28477055801 is a prime.

It is a super-2 number, since 2×28477063993² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28477063999) 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 11 ways as a sum of consecutive naturals, for example, 17123080 + ... + 17124742.

It is an arithmetic number, because the mean of its divisors is an integer number (2715577984).

Almost surely, 2^28477063993 is an apocalyptic number.

It is an amenable number.

28477063993 is a deficient number, since it is larger than the sum of its proper divisors (4109871815).

28477063993 is an frugal number, since it uses more digits than its factorization.

28477063993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804 (or 3141 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 58.

The spelling of 28477063993 in words is "twenty-eight billion, four hundred seventy-seven million, sixty-three thousand, nine hundred ninety-three".