87708720572340 has 384 divisors, whose sum is σ = 293586664734720. Its totient is φ = 19129260429312.

The previous prime is 87708720572329. The next prime is 87708720572353. The reversal of 87708720572340 is 4327502780778.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6931845454 + ... + 6931858106.

It is an arithmetic number, because the mean of its divisors is an integer number (764548606080).

Almost surely, 2^{87708720572340} 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 87708720572340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146793332367360).

87708720572340 is an abundant number, since it is smaller than the sum of its proper divisors (205877944162380).

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

87708720572340 is a wasteful number, since it uses less digits than its factorization.

87708720572340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14391 (or 14389 counting only the distinct ones).

The product of its (nonzero) digits is 36879360, while the sum is 60.

The spelling of 87708720572340 in words is "eighty-seven trillion, seven hundred eight billion, seven hundred twenty million, five hundred seventy-two thousand, three hundred forty".