971878910019 has 32 divisors (see below), whose sum is σ = 1345319539200. Its totient is φ = 623650064640.

The previous prime is 971878909933. The next prime is 971878910021. The reversal of 971878910019 is 910019878179.

It is not a de Polignac number, because 971878910019 - 2²⁴ = 971862132803 is a prime.

It is a super-2 number, since 2×971878910019² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (971878910059) 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, 3265372 + ... + 3550550.

It is an arithmetic number, because the mean of its divisors is an integer number (42041235600).

Almost surely, 2^971878910019 is an apocalyptic number.

971878910019 is a deficient number, since it is larger than the sum of its proper divisors (373440629181).

971878910019 is a wasteful number, since it uses less digits than its factorization.

971878910019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285595.

The product of its (nonzero) digits is 2286144, while the sum is 60.

The spelling of 971878910019 in words is "nine hundred seventy-one billion, eight hundred seventy-eight million, nine hundred ten thousand, nineteen".