28664402374 has 4 divisors (see below), whose sum is σ = 42996603564. Its totient is φ = 14332201186.

The previous prime is 28664402363. The next prime is 28664402443. The reversal of 28664402374 is 47320446682.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7166100592 + ... + 7166100595.

It is an arithmetic number, because the mean of its divisors is an integer number (10749150891).

Almost surely, 2^28664402374 is an apocalyptic number.

28664402374 is a deficient number, since it is larger than the sum of its proper divisors (14332201190).

28664402374 is a wasteful number, since it uses less digits than its factorization.

28664402374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14332201189.

The product of its (nonzero) digits is 1548288, while the sum is 46.

The spelling of 28664402374 in words is "twenty-eight billion, six hundred sixty-four million, four hundred two thousand, three hundred seventy-four".