3701685690 has 64 divisors (see below), whose sum is σ = 10081221120. Its totient is φ = 966110400.

The previous prime is 3701685649. The next prime is 3701685769. The reversal of 3701685690 is 965861073.

It is a happy number.

3701685690 is a `hidden beast` number, since 3 + 70 + 16 + 8 + 569 + 0 = 666.

It is a super-2 number, since 2×3701685690² = 27404953895101552200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133161 + ... + 158540.

It is an arithmetic number, because the mean of its divisors is an integer number (157519080).

Almost surely, 2^3701685690 is an apocalyptic number.

3701685690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3701685690 is an abundant number, since it is smaller than the sum of its proper divisors (6379535430).

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

3701685690 is a wasteful number, since it uses less digits than its factorization.

3701685690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291764 (or 291758 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 3701685690 is about 60841.4800115842. The cubic root of 3701685690 is about 1546.9152231230.

The spelling of 3701685690 in words is "three billion, seven hundred one million, six hundred eighty-five thousand, six hundred ninety".