364400005621 has 8 divisors (see below), whose sum is σ = 380916300800. Its totient is φ = 348181301520.

The previous prime is 364400005591. The next prime is 364400005639. The reversal of 364400005621 is 126500004463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-364400005621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364400000621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74395266 + ... + 74400163.

It is an arithmetic number, because the mean of its divisors is an integer number (47614537600).

Almost surely, 2^364400005621 is an apocalyptic number.

364400005621 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

364400005621 is a deficient number, since it is larger than the sum of its proper divisors (16516295179).

364400005621 is a wasteful number, since it uses less digits than its factorization.

364400005621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148795539.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 364400005621 in words is "three hundred sixty-four billion, four hundred million, five thousand, six hundred twenty-one".