83123621870170 has 48 divisors (see below), whose sum is σ = 174099593825280. Its totient is φ = 28491519165984.

The previous prime is 83123621870167. The next prime is 83123621870173. The reversal of 83123621870170 is 7107812632138.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83123621870167) and next prime (83123621870173).

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (83123621870173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22088634 + ... + 25576453.

It is an arithmetic number, because the mean of its divisors is an integer number (3627074871360).

Almost surely, 2^{83123621870170} is an apocalyptic number.

83123621870170 is an abundant number, since it is smaller than the sum of its proper divisors (90975971955110).

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

83123621870170 is a wasteful number, since it uses less digits than its factorization.

83123621870170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47668667 (or 47668660 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 83123621870170 in words is "eighty-three trillion, one hundred twenty-three billion, six hundred twenty-one million, eight hundred seventy thousand, one hundred seventy".