364464216512621 has 4 divisors (see below), whose sum is σ = 364464273247200. Its totient is φ = 364464159778044.

The previous prime is 364464216512609. The next prime is 364464216512647. The reversal of 364464216512621 is 126215612464463.

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-364464216512621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364464216515621) 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, 17289161 + ... + 32059998.

It is an arithmetic number, because the mean of its divisors is an integer number (91116068311800).

Almost surely, 2^{364464216512621} is an apocalyptic number.

It is an amenable number.

364464216512621 is a deficient number, since it is larger than the sum of its proper divisors (56734579).

364464216512621 is an equidigital number, since it uses as much as digits as its factorization.

364464216512621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56734578.

The product of its digits is 9953280, while the sum is 53.

The spelling of 364464216512621 in words is "three hundred sixty-four trillion, four hundred sixty-four billion, two hundred sixteen million, five hundred twelve thousand, six hundred twenty-one".