28703665038 has 16 divisors (see below), whose sum is σ = 57554911440. Its totient is φ = 9543291456.

The previous prime is 28703665033. The next prime is 28703665129. The reversal of 28703665038 is 83056630782.

It is a super-2 number, since 2×28703665038² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28703665033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6146695 + ... + 6151362.

It is an arithmetic number, because the mean of its divisors is an integer number (3597181965).

Almost surely, 2^28703665038 is an apocalyptic number.

28703665038 is an abundant number, since it is smaller than the sum of its proper divisors (28851246402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28703665038 is a wasteful number, since it uses less digits than its factorization.

28703665038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12298451.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 28703665038 in words is "twenty-eight billion, seven hundred three million, six hundred sixty-five thousand, thirty-eight".