3646472218579 has 4 divisors (see below), whose sum is σ = 3805014488976. Its totient is φ = 3487929948184.

The previous prime is 3646472218567. The next prime is 3646472218661. The reversal of 3646472218579 is 9758122746463.

3646472218579 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3646472218579 - 2⁵ = 3646472218547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3646472218579.

It is not an unprimeable number, because it can be changed into a prime (3646472218559) 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, 79271135164 + ... + 79271135209.

It is an arithmetic number, because the mean of its divisors is an integer number (951253622244).

Almost surely, 2^{3646472218579} is an apocalyptic number.

3646472218579 is a deficient number, since it is larger than the sum of its proper divisors (158542270397).

3646472218579 is a wasteful number, since it uses less digits than its factorization.

3646472218579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158542270396.

The product of its digits is 121927680, while the sum is 64.

The spelling of 3646472218579 in words is "three trillion, six hundred forty-six billion, four hundred seventy-two million, two hundred eighteen thousand, five hundred seventy-nine".