3640755682 has 4 divisors (see below), whose sum is σ = 5461133526. Its totient is φ = 1820377840.

The previous prime is 3640755619. The next prime is 3640755697. The reversal of 3640755682 is 2865570463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2865570463 = 7 ⋅409367209.

It can be written as a sum of positive squares in only one way, i.e., 2583790561 + 1056965121 = 50831^2 + 32511^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910188919 + ... + 910188922.

Almost surely, 2^3640755682 is an apocalyptic number.

3640755682 is a deficient number, since it is larger than the sum of its proper divisors (1820377844).

3640755682 is a wasteful number, since it uses less digits than its factorization.

3640755682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820377843.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The square root of 3640755682 is about 60338.6748445804. The cubic root of 3640755682 is about 1538.3807799502.

The spelling of 3640755682 in words is "three billion, six hundred forty million, seven hundred fifty-five thousand, six hundred eighty-two".