28397723514 has 8 divisors (see below), whose sum is σ = 56795447040. Its totient is φ = 9465907836.

The previous prime is 28397723509. The next prime is 28397723531. The reversal of 28397723514 is 41532779382.

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

28397723514 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2366476954 + ... + 2366476965.

It is an arithmetic number, because the mean of its divisors is an integer number (7099430880).

Almost surely, 2^28397723514 is an apocalyptic number.

28397723514 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28397723514 is a wasteful number, since it uses less digits than its factorization.

28397723514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732953924.

The product of its digits is 2540160, while the sum is 51.

The spelling of 28397723514 in words is "twenty-eight billion, three hundred ninety-seven million, seven hundred twenty-three thousand, five hundred fourteen".