3657645160867 has 4 divisors (see below), whose sum is σ = 3742706676280. Its totient is φ = 3572583645456.

The previous prime is 3657645160861. The next prime is 3657645160889. The reversal of 3657645160867 is 7680615467563.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3657645160867 - 2¹⁹ = 3657644636579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3657645160799 and 3657645160808.

It is not an unprimeable number, because it can be changed into a prime (3657645160861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42530757642 + ... + 42530757727.

It is an arithmetic number, because the mean of its divisors is an integer number (935676669070).

Almost surely, 2^{3657645160867} is an apocalyptic number.

3657645160867 is a deficient number, since it is larger than the sum of its proper divisors (85061515413).

3657645160867 is an equidigital number, since it uses as much as digits as its factorization.

3657645160867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85061515412.

The product of its (nonzero) digits is 152409600, while the sum is 64.

The spelling of 3657645160867 in words is "three trillion, six hundred fifty-seven billion, six hundred forty-five million, one hundred sixty thousand, eight hundred sixty-seven".