2157215143587 has 32 divisors (see below), whose sum is σ = 3406125465600. Its totient is φ = 1188394083360.

The previous prime is 2157215143561. The next prime is 2157215143597. The reversal of 2157215143587 is 7853415127512.

It is not a de Polignac number, because 2157215143587 - 2⁸ = 2157215143331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2157215143537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6128587 + ... + 6471012.

It is an arithmetic number, because the mean of its divisors is an integer number (106441420800).

Almost surely, 2^{2157215143587} is an apocalyptic number.

2157215143587 is a deficient number, since it is larger than the sum of its proper divisors (1248910322013).

2157215143587 is a wasteful number, since it uses less digits than its factorization.

2157215143587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12599903.

The product of its digits is 2352000, while the sum is 51.

The spelling of 2157215143587 in words is "two trillion, one hundred fifty-seven billion, two hundred fifteen million, one hundred forty-three thousand, five hundred eighty-seven".