3654423666726 has 32 divisors (see below), whose sum is σ = 8364749786880. Its totient is φ = 1042648371936.

The previous prime is 3654423666709. The next prime is 3654423666769. The reversal of 3654423666726 is 6276663244563.

It is a self number, because there is not a number n which added to its sum of digits gives 3654423666726.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61331356 + ... + 61390911.

It is an arithmetic number, because the mean of its divisors is an integer number (261398430840).

Almost surely, 2^{3654423666726} is an apocalyptic number.

3654423666726 is an abundant number, since it is smaller than the sum of its proper divisors (4710326120154).

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

3654423666726 is a wasteful number, since it uses less digits than its factorization.

3654423666726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122722988.

The product of its digits is 156764160, while the sum is 60.

The spelling of 3654423666726 in words is "three trillion, six hundred fifty-four billion, four hundred twenty-three million, six hundred sixty-six thousand, seven hundred twenty-six".