28699419140 has 24 divisors (see below), whose sum is σ = 68878606272. Its totient is φ = 9839800800.

The previous prime is 28699419139. The next prime is 28699419143. The reversal of 28699419140 is 4191499682.

It is not an unprimeable number, because it can be changed into a prime (28699419143) 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, 102497786 + ... + 102498065.

It is an arithmetic number, because the mean of its divisors is an integer number (2869941928).

Almost surely, 2^28699419140 is an apocalyptic number.

28699419140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28699419140 is an abundant number, since it is smaller than the sum of its proper divisors (40179187132).

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

28699419140 is a wasteful number, since it uses less digits than its factorization.

28699419140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204995867 (or 204995865 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 28699419140 in words is "twenty-eight billion, six hundred ninety-nine million, four hundred nineteen thousand, one hundred forty".