28719025718 has 16 divisors (see below), whose sum is σ = 45726339024. Its totient is φ = 13481126400.

The previous prime is 28719025691. The next prime is 28719025723. The reversal of 28719025718 is 81752091782.

It is a super-2 number, since 2×28719025718² (a number of 22 digits) contains 22 as substring.

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, 1039580 + ... + 1066847.

It is an arithmetic number, because the mean of its divisors is an integer number (2857896189).

Almost surely, 2^28719025718 is an apocalyptic number.

28719025718 is a deficient number, since it is larger than the sum of its proper divisors (17007313306).

28719025718 is a wasteful number, since it uses less digits than its factorization.

28719025718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106847.

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 28719025718 in words is "twenty-eight billion, seven hundred nineteen million, twenty-five thousand, seven hundred eighteen".