83680078233756 has 24 divisors (see below), whose sum is σ = 195254375765904. Its totient is φ = 27893236570240.

The previous prime is 83680078233677. The next prime is 83680078233757. The reversal of 83680078233756 is 65733287008638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83680078233757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12495465 + ... + 17986016.

It is an arithmetic number, because the mean of its divisors is an integer number (8135598990246).

Almost surely, 2^{83680078233756} is an apocalyptic number.

It is an amenable number.

83680078233756 is an abundant number, since it is smaller than the sum of its proper divisors (111574297532148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83680078233756 is a wasteful number, since it uses less digits than its factorization.

83680078233756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30710261 (or 30710259 counting only the distinct ones).

The product of its (nonzero) digits is 243855360, while the sum is 66.

The spelling of 83680078233756 in words is "eighty-three trillion, six hundred eighty billion, seventy-eight million, two hundred thirty-three thousand, seven hundred fifty-six".