3651103815361 has 4 divisors (see below), whose sum is σ = 3768881357824. Its totient is φ = 3533326272900.

The previous prime is 3651103815341. The next prime is 3651103815383. The reversal of 3651103815361 is 1635183011563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3651103815361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3651103815311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58888771185 + ... + 58888771246.

It is an arithmetic number, because the mean of its divisors is an integer number (942220339456).

Almost surely, 2^{3651103815361} is an apocalyptic number.

3651103815361 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3651103815361 is a deficient number, since it is larger than the sum of its proper divisors (117777542463).

3651103815361 is a wasteful number, since it uses less digits than its factorization.

3651103815361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117777542462.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 3651103815361 in words is "three trillion, six hundred fifty-one billion, one hundred three million, eight hundred fifteen thousand, three hundred sixty-one".