28150576466 has 8 divisors (see below), whose sum is σ = 43255763964. Its totient is φ = 13731988480.

The previous prime is 28150576451. The next prime is 28150576483. The reversal of 28150576466 is 66467505182.

It can be written as a sum of positive squares in 2 ways, for example, as 27896014441 + 254562025 = 167021^2 + 15955^2 .

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

It is a super-2 number, since 2×28150576466² (a number of 22 digits) contains 22 as substring.

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, 171649775 + ... + 171649938.

Almost surely, 2^28150576466 is an apocalyptic number.

28150576466 is a deficient number, since it is larger than the sum of its proper divisors (15105187498).

28150576466 is a wasteful number, since it uses less digits than its factorization.

28150576466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343299756.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 28150576466 in words is "twenty-eight billion, one hundred fifty million, five hundred seventy-six thousand, four hundred sixty-six".