28357269715 has 16 divisors (see below), whose sum is σ = 35440666560. Its totient is φ = 21761792640.

The previous prime is 28357269691. The next prime is 28357269719. The reversal of 28357269715 is 51796275382.

It is not a de Polignac number, because 28357269715 - 2²¹ = 28355172563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28357269719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066320 + ... + 1092589.

It is an arithmetic number, because the mean of its divisors is an integer number (2215041660).

Almost surely, 2^28357269715 is an apocalyptic number.

28357269715 is a deficient number, since it is larger than the sum of its proper divisors (7083396845).

28357269715 is a wasteful number, since it uses less digits than its factorization.

28357269715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159022.

The product of its digits is 6350400, while the sum is 55.

The spelling of 28357269715 in words is "twenty-eight billion, three hundred fifty-seven million, two hundred sixty-nine thousand, seven hundred fifteen".