87215000857 has 8 divisors (see below), whose sum is σ = 95796797760. Its totient is φ = 79032357360.

The previous prime is 87215000849. The next prime is 87215000861. The reversal of 87215000857 is 75800051278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87215000857 - 2³ = 87215000849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87215000897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99787894 + ... + 99788767.

It is an arithmetic number, because the mean of its divisors is an integer number (11974599720).

Almost surely, 2^87215000857 is an apocalyptic number.

It is an amenable number.

87215000857 is a deficient number, since it is larger than the sum of its proper divisors (8581796903).

87215000857 is a wasteful number, since it uses less digits than its factorization.

87215000857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199576703.

The product of its (nonzero) digits is 156800, while the sum is 43.

The spelling of 87215000857 in words is "eighty-seven billion, two hundred fifteen million, eight hundred fifty-seven", and thus it is an aban number.