83047273920 has 1792 divisors, whose sum is σ = 365736591360. Its totient is φ = 17517772800.

The previous prime is 83047273873. The next prime is 83047273927. The reversal of 83047273920 is 2937274038.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83047273927) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1361430690 + ... + 1361430750.

It is an arithmetic number, because the mean of its divisors is an integer number (204094080).

Almost surely, 2^83047273920 is an apocalyptic number.

83047273920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83047273920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182868295680).

83047273920 is an abundant number, since it is smaller than the sum of its proper divisors (282689317440).

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

83047273920 is a wasteful number, since it uses less digits than its factorization.

83047273920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 83047273920 in words is "eighty-three billion, forty-seven million, two hundred seventy-three thousand, nine hundred twenty".