28439673088996 has 27 divisors (see below), whose sum is σ = 53892601841673. Its totient is φ = 13125938969520.

The previous prime is 28439673088979. The next prime is 28439673089033. The reversal of 28439673088996 is 69988037693482.

The square root of 28439673088996 is 5332886.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4207052232100 + 24232620856896 = 2051110^2 + 4922664^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 138552481 + ... + 138757591.

Almost surely, 2^{28439673088996} is an apocalyptic number.

28439673088996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28439673088996 is the 5332886-th square number.

It is an amenable number.

28439673088996 is a deficient number, since it is larger than the sum of its proper divisors (25452928752677).

28439673088996 is an frugal number, since it uses more digits than its factorization.

28439673088996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410252 (or 205126 counting only the distinct ones).

The product of its (nonzero) digits is 6772211712, while the sum is 82.

The spelling of 28439673088996 in words is "twenty-eight trillion, four hundred thirty-nine billion, six hundred seventy-three million, eighty-eight thousand, nine hundred ninety-six".