3656746726 has 16 divisors (see below), whose sum is σ = 5795290800. Its totient is φ = 1725699168.

The previous prime is 3656746651. The next prime is 3656746739. The reversal of 3656746726 is 6276476563.

It is a super-2 number, since 2×3656746726² = 26743593236223438152, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 168645 + ... + 189088.

It is an arithmetic number, because the mean of its divisors is an integer number (362205675).

Almost surely, 2^3656746726 is an apocalyptic number.

3656746726 is a deficient number, since it is larger than the sum of its proper divisors (2138544074).

3656746726 is a wasteful number, since it uses less digits than its factorization.

3656746726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358023.

The product of its digits is 7620480, while the sum is 52.

The square root of 3656746726 is about 60471.0403912484. The cubic root of 3656746726 is about 1540.6297989041.

The spelling of 3656746726 in words is "three billion, six hundred fifty-six million, seven hundred forty-six thousand, seven hundred twenty-six".