28873031430 has 16 divisors (see below), whose sum is σ = 69295275504. Its totient is φ = 7699475040.

The previous prime is 28873031423. The next prime is 28873031461. The reversal of 28873031430 is 3413037882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481217161 + ... + 481217220.

It is an arithmetic number, because the mean of its divisors is an integer number (4330954719).

Almost surely, 2^28873031430 is an apocalyptic number.

28873031430 is an abundant number, since it is smaller than the sum of its proper divisors (40422244074).

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

28873031430 is a wasteful number, since it uses less digits than its factorization.

28873031430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962434391.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 28873031430 in words is "twenty-eight billion, eight hundred seventy-three million, thirty-one thousand, four hundred thirty".