28615321662 has 16 divisors (see below), whose sum is σ = 57236683152. Its totient is φ = 9537433920.

The previous prime is 28615321661. The next prime is 28615321663. The reversal of 28615321662 is 26612351682.

It is an interprime number because it is at equal distance from previous prime (28615321661) and next prime (28615321663).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28615321661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188863 + ... + 304794.

It is an arithmetic number, because the mean of its divisors is an integer number (3577292697).

Almost surely, 2^28615321662 is an apocalyptic number.

28615321662 is an abundant number, since it is smaller than the sum of its proper divisors (28621361490).

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

28615321662 is a wasteful number, since it uses less digits than its factorization.

28615321662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503323.

The product of its digits is 207360, while the sum is 42.

The spelling of 28615321662 in words is "twenty-eight billion, six hundred fifteen million, three hundred twenty-one thousand, six hundred sixty-two".