28135732002 has 32 divisors (see below), whose sum is σ = 64350667392. Its totient is φ = 8033727744.

The previous prime is 28135731989. The next prime is 28135732043. The reversal of 28135732002 is 20023753182.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142663 + ... + 276810.

It is an arithmetic number, because the mean of its divisors is an integer number (2010958356).

Almost surely, 2^28135732002 is an apocalyptic number.

28135732002 is an abundant number, since it is smaller than the sum of its proper divisors (36214935390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28135732002 is a wasteful number, since it uses less digits than its factorization.

28135732002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421082.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 28135732002 in words is "twenty-eight billion, one hundred thirty-five million, seven hundred thirty-two thousand, two".