1680542937 has 8 divisors (see below), whose sum is σ = 2489693280. Its totient is φ = 1120361940.

The previous prime is 1680542917. The next prime is 1680542959. The reversal of 1680542937 is 7392450861.

1680542937 is a `hidden beast` number, since 16 + 8 + 0 + 542 + 93 + 7 = 666.

1680542937 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1680542937 - 2¹¹ = 1680540889 is a prime.

1680542937 is strictly pandigital in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1680542892 and 1680542901.

It is not an unprimeable number, because it can be changed into a prime (1680542917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31121139 + ... + 31121192.

It is an arithmetic number, because the mean of its divisors is an integer number (311211660).

It is a 1-persistent number, because it is pandigital, but 2⋅1680542937 = 3361085874 is not.

Almost surely, 2^1680542937 is an apocalyptic number.

It is an amenable number.

1680542937 is a deficient number, since it is larger than the sum of its proper divisors (809150343).

1680542937 is an equidigital number, since it uses as much as digits as its factorization.

1680542937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62242340 (or 62242334 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1680542937 is about 40994.4256820363. The cubic root of 1680542937 is about 1188.9124392656.

The spelling of 1680542937 in words is "one billion, six hundred eighty million, five hundred forty-two thousand, nine hundred thirty-seven".