28058182042 has 12 divisors (see below), whose sum is σ = 46261217898. Its totient is φ = 12753719000.

The previous prime is 28058182007. The next prime is 28058182069. The reversal of 28058182042 is 24028185082.

It can be written as a sum of positive squares in only one way, i.e., 24292027881 + 3766154161 = 155859^2 + 61369^2 .

It is a super-2 number, since 2×28058182042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28058181986 and 28058182004.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57971209 + ... + 57971692.

Almost surely, 2^28058182042 is an apocalyptic number.

28058182042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28058182042 is a deficient number, since it is larger than the sum of its proper divisors (18203035856).

28058182042 is a wasteful number, since it uses less digits than its factorization.

28058182042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115942925 (or 115942914 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The spelling of 28058182042 in words is "twenty-eight billion, fifty-eight million, one hundred eighty-two thousand, forty-two".