28731145314 has 16 divisors (see below), whose sum is σ = 57559198752. Its totient is φ = 9560897088.

The previous prime is 28731145277. The next prime is 28731145319. The reversal of 28731145314 is 41354113782.

It is a super-2 number, since 2×28731145314² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28731145319) 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, 4033984 + ... + 4041099.

It is an arithmetic number, because the mean of its divisors is an integer number (3597449922).

Almost surely, 2^28731145314 is an apocalyptic number.

28731145314 is an abundant number, since it is smaller than the sum of its proper divisors (28828053438).

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

28731145314 is a wasteful number, since it uses less digits than its factorization.

28731145314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8075681.

The product of its digits is 80640, while the sum is 39.

The spelling of 28731145314 in words is "twenty-eight billion, seven hundred thirty-one million, one hundred forty-five thousand, three hundred fourteen".