28130167418 has 4 divisors (see below), whose sum is σ = 42195251130. Its totient is φ = 14065083708.

The previous prime is 28130167381. The next prime is 28130167453. The reversal of 28130167418 is 81476103182.

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

It can be written as a sum of positive squares in only one way, i.e., 19263496849 + 8866670569 = 138793^2 + 94163^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7032541853 + ... + 7032541856.

Almost surely, 2^28130167418 is an apocalyptic number.

28130167418 is a deficient number, since it is larger than the sum of its proper divisors (14065083712).

28130167418 is a wasteful number, since it uses less digits than its factorization.

28130167418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14065083711.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 28130167418 in words is "twenty-eight billion, one hundred thirty million, one hundred sixty-seven thousand, four hundred eighteen".