87056760281251 has 4 divisors (see below), whose sum is σ = 87315088947112. Its totient is φ = 86798431615392.

The previous prime is 87056760281243. The next prime is 87056760281263. The reversal of 87056760281251 is 15218206765078.

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

It is a cyclic number.

It is not a de Polignac number, because 87056760281251 - 2³ = 87056760281243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87056760281551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129164332425 + ... + 129164333098.

It is an arithmetic number, because the mean of its divisors is an integer number (21828772236778).

Almost surely, 2^{87056760281251} is an apocalyptic number.

87056760281251 is a deficient number, since it is larger than the sum of its proper divisors (258328665861).

87056760281251 is a wasteful number, since it uses less digits than its factorization.

87056760281251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258328665860.

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 87056760281251 in words is "eighty-seven trillion, fifty-six billion, seven hundred sixty million, two hundred eighty-one thousand, two hundred fifty-one".