1686001064 has 16 divisors (see below), whose sum is σ = 3448638720. Its totient is φ = 766364080.

The previous prime is 1686000997. The next prime is 1686001067. The reversal of 1686001064 is 4601006861.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1686001064.

It is not an unprimeable number, because it can be changed into a prime (1686001067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9579464 + ... + 9579639.

It is an arithmetic number, because the mean of its divisors is an integer number (215539920).

Almost surely, 2^1686001064 is an apocalyptic number.

It is an amenable number.

1686001064 is an abundant number, since it is smaller than the sum of its proper divisors (1762637656).

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

1686001064 is a wasteful number, since it uses less digits than its factorization.

1686001064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19159120 (or 19159116 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1686001064 is about 41060.9432916488. The cubic root of 1686001064 is about 1190.1981789847.

The spelling of 1686001064 in words is "one billion, six hundred eighty-six million, one thousand, sixty-four".