28019516007 has 32 divisors (see below), whose sum is σ = 43022246400. Its totient is φ = 15889161600.

The previous prime is 28019515999. The next prime is 28019516017. The reversal of 28019516007 is 70061591082.

It is not a de Polignac number, because 28019516007 - 2³ = 28019515999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28019516017) 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, 4067388 + ... + 4074270.

It is an arithmetic number, because the mean of its divisors is an integer number (1344445200).

Almost surely, 2^28019516007 is an apocalyptic number.

28019516007 is a deficient number, since it is larger than the sum of its proper divisors (15002730393).

28019516007 is a wasteful number, since it uses less digits than its factorization.

28019516007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8343.

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 28019516007 in words is "twenty-eight billion, nineteen million, five hundred sixteen thousand, seven".