28087689247524 has 81 divisors (see below), whose sum is σ = 71450873591643. Its totient is φ = 9303406915824.

The previous prime is 28087689247517. The next prime is 28087689247531. The reversal of 28087689247524 is 42574298678082.

The square root of 28087689247524 is 5299782.

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

28087689247524 is a `hidden beast` number, since 2 + 8 + 0 + 8 + 7 + 6 + 8 + 92 + 4 + 7 + 524 = 666.

It is an interprime number because it is at equal distance from previous prime (28087689247517) and next prime (28087689247531).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5183184087 + ... + 5183189505.

Almost surely, 2^{28087689247524} is an apocalyptic number.

28087689247524 is the 5299782-nd square number.

It is an amenable number.

28087689247524 is an abundant number, since it is smaller than the sum of its proper divisors (43363184344119).

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

28087689247524 is an frugal number, since it uses more digits than its factorization.

28087689247524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174 (or 5587 counting only the distinct ones).

The product of its (nonzero) digits is 867041280, while the sum is 72.

The spelling of 28087689247524 in words is "twenty-eight trillion, eighty-seven billion, six hundred eighty-nine million, two hundred forty-seven thousand, five hundred twenty-four".