2685701658 has 16 divisors (see below), whose sum is σ = 5556624480. Its totient is φ = 864363696.

The previous prime is 2685701621. The next prime is 2685701659. The reversal of 2685701658 is 8561075862.

It is not an unprimeable number, because it can be changed into a prime (2685701659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7717360 + ... + 7717707.

It is an arithmetic number, because the mean of its divisors is an integer number (347289030).

Almost surely, 2^2685701658 is an apocalyptic number.

2685701658 is an abundant number, since it is smaller than the sum of its proper divisors (2870922822).

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

2685701658 is a wasteful number, since it uses less digits than its factorization.

2685701658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15435101.

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 2685701658 is about 51823.7557303598. The cubic root of 2685701658 is about 1390.0142603302.

The spelling of 2685701658 in words is "two billion, six hundred eighty-five million, seven hundred one thousand, six hundred fifty-eight".