28993514004 has 96 divisors (see below), whose sum is σ = 92514947840. Its totient is φ = 7646638464.

The previous prime is 28993514003. The next prime is 28993514027. The reversal of 28993514004 is 40041539982.

It is a super-2 number, since 2×28993514004² (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 (28993514003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1465219 + ... + 1484874.

Almost surely, 2^28993514004 is an apocalyptic number.

It is an amenable number.

28993514004 is an abundant number, since it is smaller than the sum of its proper divisors (63521433836).

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

28993514004 is a wasteful number, since it uses less digits than its factorization.

28993514004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950126 (or 2950118 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 28993514004 in words is "twenty-eight billion, nine hundred ninety-three million, five hundred fourteen thousand, four".