28343145494 has 16 divisors (see below), whose sum is σ = 42688166400. Its totient is φ = 14113859304.

The previous prime is 28343145487. The next prime is 28343145499. The reversal of 28343145494 is 49454134382.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28343145499) 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, 539987 + ... + 590145.

It is an arithmetic number, because the mean of its divisors is an integer number (2668010400).

Almost surely, 2^28343145494 is an apocalyptic number.

28343145494 is a deficient number, since it is larger than the sum of its proper divisors (14345020906).

28343145494 is a wasteful number, since it uses less digits than its factorization.

28343145494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51307.

The product of its digits is 1658880, while the sum is 47.

The spelling of 28343145494 in words is "twenty-eight billion, three hundred forty-three million, one hundred forty-five thousand, four hundred ninety-four".