28716031715 has 8 divisors (see below), whose sum is σ = 39381986400. Its totient is φ = 19690993152.

The previous prime is 28716031711. The next prime is 28716031723. The reversal of 28716031715 is 51713061782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28716031715 - 2² = 28716031711 is a prime.

It is a super-2 number, since 2×28716031715² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28716031711) 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, 410228990 + ... + 410229059.

It is an arithmetic number, because the mean of its divisors is an integer number (4922748300).

Almost surely, 2^28716031715 is an apocalyptic number.

28716031715 is a deficient number, since it is larger than the sum of its proper divisors (10665954685).

28716031715 is an equidigital number, since it uses as much as digits as its factorization.

28716031715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820458061.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 28716031715 in words is "twenty-eight billion, seven hundred sixteen million, thirty-one thousand, seven hundred fifteen".