83878653885134 has 32 divisors (see below), whose sum is σ = 129679310914560. Its totient is φ = 40668698191968.

The previous prime is 83878653885133. The next prime is 83878653885137. The reversal of 83878653885134 is 43158835687838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83878653885133) 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, 260569109 + ... + 260890815.

It is an arithmetic number, because the mean of its divisors is an integer number (4052478466080).

Almost surely, 2^{83878653885134} is an apocalyptic number.

83878653885134 is a deficient number, since it is larger than the sum of its proper divisors (45800657029426).

83878653885134 is a wasteful number, since it uses less digits than its factorization.

83878653885134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347312.

The product of its digits is 3715891200, while the sum is 77.

The spelling of 83878653885134 in words is "eighty-three trillion, eight hundred seventy-eight billion, six hundred fifty-three million, eight hundred eighty-five thousand, one hundred thirty-four".