87063579257 has 4 divisors (see below), whose sum is σ = 87071485776. Its totient is φ = 87055672740.

The previous prime is 87063579227. The next prime is 87063579263. The reversal of 87063579257 is 75297536078.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87063579257 - 2²⁸ = 86795143801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87063579196 and 87063579205.

It is not an unprimeable number, because it can be changed into a prime (87063579227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3936719 + ... + 3958772.

It is an arithmetic number, because the mean of its divisors is an integer number (21767871444).

Almost surely, 2^87063579257 is an apocalyptic number.

It is an amenable number.

87063579257 is a deficient number, since it is larger than the sum of its proper divisors (7906519).

87063579257 is a wasteful number, since it uses less digits than its factorization.

87063579257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7906518.

The product of its (nonzero) digits is 22226400, while the sum is 59.

The spelling of 87063579257 in words is "eighty-seven billion, sixty-three million, five hundred seventy-nine thousand, two hundred fifty-seven".