10215171867 has 16 divisors (see below), whose sum is σ = 13808471040. Its totient is φ = 6716191872.

The previous prime is 10215171847. The next prime is 10215171877. The reversal of 10215171867 is 76817151201.

It is not a de Polignac number, because 10215171867 - 2¹⁸ = 10214909723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10215171847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185923 + ... + 234515.

It is an arithmetic number, because the mean of its divisors is an integer number (863029440).

Almost surely, 2^10215171867 is an apocalyptic number.

10215171867 is a deficient number, since it is larger than the sum of its proper divisors (3593299173).

10215171867 is an equidigital number, since it uses as much as digits as its factorization.

10215171867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49562.

The product of its (nonzero) digits is 23520, while the sum is 39.

The spelling of 10215171867 in words is "ten billion, two hundred fifteen million, one hundred seventy-one thousand, eight hundred sixty-seven".