1623159584009 has 4 divisors (see below), whose sum is σ = 1623176012820. Its totient is φ = 1623143155200.

The previous prime is 1623159583999. The next prime is 1623159584041. The reversal of 1623159584009 is 9004859513261.

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

It can be written as a sum of positive squares in 2 ways, for example, as 356375568784 + 1266784015225 = 596972^2 + 1125515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1623159584009 - 2⁸ = 1623159583753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1623159584209) 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, 8065304 + ... + 8264105.

It is an arithmetic number, because the mean of its divisors is an integer number (405794003205).

Almost surely, 2^{1623159584009} is an apocalyptic number.

It is an amenable number.

1623159584009 is a deficient number, since it is larger than the sum of its proper divisors (16428811).

1623159584009 is an equidigital number, since it uses as much as digits as its factorization.

1623159584009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16428810.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 1623159584009 in words is "one trillion, six hundred twenty-three billion, one hundred fifty-nine million, five hundred eighty-four thousand, nine".