1680510928500 has 480 divisors, whose sum is σ = 5629952135808. Its totient is φ = 436174502400.

The previous prime is 1680510928477. The next prime is 1680510928541. The reversal of 1680510928500 is 58290150861.

It is a happy number.

1680510928500 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 51 + 0 + 92 + 8 + 500 = 666.

It is a super-2 number, since 2×1680510928500² (a number of 25 digits) contains 22 as substring.

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 polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 545087959 + ... + 545091041.

Almost surely, 2^{1680510928500} is an apocalyptic number.

1680510928500 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 1680510928500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2814976067904).

1680510928500 is an abundant number, since it is smaller than the sum of its proper divisors (3949441207308).

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

1680510928500 is a wasteful number, since it uses less digits than its factorization.

1680510928500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470 (or 3449 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The spelling of 1680510928500 in words is "one trillion, six hundred eighty billion, five hundred ten million, nine hundred twenty-eight thousand, five hundred".