3651977871366 has 64 divisors (see below), whose sum is σ = 8226038937600. Its totient is φ = 1070823686400.

The previous prime is 3651977871343. The next prime is 3651977871379. The reversal of 3651977871366 is 6631787791563.

It is a self number, because there is not a number n which added to its sum of digits gives 3651977871366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16398570 + ... + 16619778.

It is an arithmetic number, because the mean of its divisors is an integer number (128531858400).

Almost surely, 2^{3651977871366} is an apocalyptic number.

3651977871366 is an abundant number, since it is smaller than the sum of its proper divisors (4574061066234).

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

3651977871366 is a wasteful number, since it uses less digits than its factorization.

3651977871366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229325.

The product of its digits is 240045120, while the sum is 69.

The spelling of 3651977871366 in words is "three trillion, six hundred fifty-one billion, nine hundred seventy-seven million, eight hundred seventy-one thousand, three hundred sixty-six".