82870931700 has 108 divisors (see below), whose sum is σ = 260841846720. Its totient is φ = 22006393920.

The previous prime is 82870931687. The next prime is 82870931729. The reversal of 82870931700 is 713907828.

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

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 22467 + ... + 407733.

Almost surely, 2^82870931700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82870931700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130420923360).

82870931700 is an abundant number, since it is smaller than the sum of its proper divisors (177970915020).

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

82870931700 is a wasteful number, since it uses less digits than its factorization.

82870931700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385526 (or 385516 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 82870931700 in words is "eighty-two billion, eight hundred seventy million, nine hundred thirty-one thousand, seven hundred".