28573575478 has 16 divisors (see below), whose sum is σ = 48989099520. Its totient is φ = 12244361256.

The previous prime is 28573575463. The next prime is 28573575493. The reversal of 28573575478 is 87457537582.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28573575463) and next prime (28573575493).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5025 + ... + 239107.

It is an arithmetic number, because the mean of its divisors is an integer number (3061818720).

Almost surely, 2^28573575478 is an apocalyptic number.

28573575478 is a deficient number, since it is larger than the sum of its proper divisors (20415524042).

28573575478 is a wasteful number, since it uses less digits than its factorization.

28573575478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242811.

The product of its digits is 65856000, while the sum is 61.

The spelling of 28573575478 in words is "twenty-eight billion, five hundred seventy-three million, five hundred seventy-five thousand, four hundred seventy-eight".