1871130841215 has 16 divisors (see below), whose sum is σ = 2994141727968. Its totient is φ = 997825654656.

The previous prime is 1871130841213. The next prime is 1871130841247. The reversal of 1871130841215 is 5121480311781.

It is a happy number.

It is not a de Polignac number, because 1871130841215 - 2¹ = 1871130841213 is a prime.

It is a super-2 number, since 2×1871130841215² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1871130841213) 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, 6784924 + ... + 7055313.

It is an arithmetic number, because the mean of its divisors is an integer number (187133857998).

Almost surely, 2^{1871130841215} is an apocalyptic number.

1871130841215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1871130841215 is a deficient number, since it is larger than the sum of its proper divisors (1123010886753).

1871130841215 is a wasteful number, since it uses less digits than its factorization.

1871130841215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13849258.

The product of its (nonzero) digits is 53760, while the sum is 42.

The spelling of 1871130841215 in words is "one trillion, eight hundred seventy-one billion, one hundred thirty million, eight hundred forty-one thousand, two hundred fifteen".