83123717768534 has 4 divisors (see below), whose sum is σ = 124685576652804. Its totient is φ = 41561858884266.

The previous prime is 83123717768479. The next prime is 83123717768537. The reversal of 83123717768534 is 43586771732138.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83123717768537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20780929442132 + ... + 20780929442135.

It is an arithmetic number, because the mean of its divisors is an integer number (31171394163201).

Almost surely, 2^{83123717768534} is an apocalyptic number.

83123717768534 is a deficient number, since it is larger than the sum of its proper divisors (41561858884270).

83123717768534 is a wasteful number, since it uses less digits than its factorization.

83123717768534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41561858884269.

The product of its digits is 142248960, while the sum is 65.

The spelling of 83123717768534 in words is "eighty-three trillion, one hundred twenty-three billion, seven hundred seventeen million, seven hundred sixty-eight thousand, five hundred thirty-four".