1687150080 has 640 divisors, whose sum is σ = 7495234560. Its totient is φ = 349470720.

The previous prime is 1687150079. The next prime is 1687150093. The reversal of 1687150080 is 800517861.

1687150080 is a `hidden beast` number, since 1 + 6 + 8 + 71 + 500 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5322082 + ... + 5322398.

It is an arithmetic number, because the mean of its divisors is an integer number (11711304).

Almost surely, 2^1687150080 is an apocalyptic number.

1687150080 is a gapful number since it is divisible by the number (10) 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 1687150080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3747617280).

1687150080 is an abundant number, since it is smaller than the sum of its proper divisors (5808084480).

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

1687150080 is a wasteful number, since it uses less digits than its factorization.

1687150080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 1687150080 is about 41074.9325014661. The cubic root of 1687150080 is about 1190.4684924170.

The spelling of 1687150080 in words is "one billion, six hundred eighty-seven million, one hundred fifty thousand, eighty".