28061403038 has 8 divisors (see below), whose sum is σ = 42169057032. Its totient is φ = 14005050696.

The previous prime is 28061403017. The next prime is 28061403043. The reversal of 28061403038 is 83030416082.

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 2×28061403038² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28061402989 and 28061403007.

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, 12824045 + ... + 12826232.

It is an arithmetic number, because the mean of its divisors is an integer number (5271132129).

Almost surely, 2^28061403038 is an apocalyptic number.

28061403038 is a deficient number, since it is larger than the sum of its proper divisors (14107653994).

28061403038 is a wasteful number, since it uses less digits than its factorization.

28061403038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25650826.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 28061403038 in words is "twenty-eight billion, sixty-one million, four hundred three thousand, thirty-eight".