3668637803841 has 6 divisors (see below), whose sum is σ = 5299143494450. Its totient is φ = 2445758535888.

The previous prime is 3668637803837. The next prime is 3668637803861. The reversal of 3668637803841 is 1483087368663.

3668637803841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3247488722241 + 421149081600 = 1802079^2 + 648960^2 .

It is not a de Polignac number, because 3668637803841 - 2² = 3668637803837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3668637803861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203813211316 + ... + 203813211333.

Almost surely, 2^{3668637803841} is an apocalyptic number.

It is an amenable number.

3668637803841 is a deficient number, since it is larger than the sum of its proper divisors (1630505690609).

3668637803841 is a wasteful number, since it uses less digits than its factorization.

3668637803841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407626422655 (or 407626422652 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 63.

The spelling of 3668637803841 in words is "three trillion, six hundred sixty-eight billion, six hundred thirty-seven million, eight hundred three thousand, eight hundred forty-one".