28150062538 has 8 divisors (see below), whose sum is σ = 45473177988. Its totient is φ = 12992336544.

The previous prime is 28150062511. The next prime is 28150062559. The reversal of 28150062538 is 83526005182.

It can be written as a sum of positive squares in 2 ways, for example, as 27630085729 + 519976809 = 166223^2 + 22803^2 .

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

It is a super-2 number, since 2×28150062538² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28150062538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541347331 + ... + 541347382.

Almost surely, 2^28150062538 is an apocalyptic number.

28150062538 is a deficient number, since it is larger than the sum of its proper divisors (17323115450).

28150062538 is a wasteful number, since it uses less digits than its factorization.

28150062538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082694728.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 28150062538 in words is "twenty-eight billion, one hundred fifty million, sixty-two thousand, five hundred thirty-eight".