1682057921687 has 16 divisors (see below), whose sum is σ = 1976304156288. Its totient is φ = 1411388448480.

The previous prime is 1682057921651. The next prime is 1682057921699. The reversal of 1682057921687 is 7861297502861.

It is a cyclic number.

It is not a de Polignac number, because 1682057921687 - 2⁶ = 1682057921623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1682057921627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054208 + ... + 2115530.

It is an arithmetic number, because the mean of its divisors is an integer number (123519009768).

Almost surely, 2^{1682057921687} is an apocalyptic number.

1682057921687 is a deficient number, since it is larger than the sum of its proper divisors (294246234601).

1682057921687 is a wasteful number, since it uses less digits than its factorization.

1682057921687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072430.

The product of its (nonzero) digits is 20321280, while the sum is 62.

The spelling of 1682057921687 in words is "one trillion, six hundred eighty-two billion, fifty-seven million, nine hundred twenty-one thousand, six hundred eighty-seven".