28135056466 has 32 divisors (see below), whose sum is σ = 46958237568. Its totient is φ = 12533888640.

The previous prime is 28135056461. The next prime is 28135056487. The reversal of 28135056466 is 66465053182.

It is not an unprimeable number, because it can be changed into a prime (28135056461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1115046 + ... + 1139998.

It is an arithmetic number, because the mean of its divisors is an integer number (1467444924).

Almost surely, 2^28135056466 is an apocalyptic number.

28135056466 is a deficient number, since it is larger than the sum of its proper divisors (18823181102).

28135056466 is a wasteful number, since it uses less digits than its factorization.

28135056466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25986.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 28135056466 in words is "twenty-eight billion, one hundred thirty-five million, fifty-six thousand, four hundred sixty-six".