28486546888 has 8 divisors (see below), whose sum is σ = 53412275430. Its totient is φ = 14243273440.

The previous prime is 28486546873. The next prime is 28486546889. The reversal of 28486546888 is 88864568482.

It can be written as a sum of positive squares in only one way, i.e., 17993003044 + 10493543844 = 134138^2 + 102438^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×28486546888² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28486546889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780409173 + ... + 1780409188.

Almost surely, 2^28486546888 is an apocalyptic number.

It is an amenable number.

28486546888 is a deficient number, since it is larger than the sum of its proper divisors (24925728542).

28486546888 is a wasteful number, since it uses less digits than its factorization.

28486546888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560818367 (or 3560818363 counting only the distinct ones).

The product of its digits is 188743680, while the sum is 67.

The spelling of 28486546888 in words is "twenty-eight billion, four hundred eighty-six million, five hundred forty-six thousand, eight hundred eighty-eight".