623344478868587 has 4 divisors (see below), whose sum is σ = 712393690135536. Its totient is φ = 534295267601640.

The previous prime is 623344478868547. The next prime is 623344478868607. The reversal of 623344478868587 is 785868874443326.

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 623344478868587 - 2¹⁰ = 623344478867563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623344478868547) 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, 44524605633464 + ... + 44524605633477.

It is an arithmetic number, because the mean of its divisors is an integer number (178098422533884).

Almost surely, 2^{623344478868587} is an apocalyptic number.

623344478868587 is a deficient number, since it is larger than the sum of its proper divisors (89049211266949).

623344478868587 is an equidigital number, since it uses as much as digits as its factorization.

623344478868587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89049211266948.

The product of its digits is 41617981440, while the sum is 83.

The spelling of 623344478868587 in words is "six hundred twenty-three trillion, three hundred forty-four billion, four hundred seventy-eight million, eight hundred sixty-eight thousand, five hundred eighty-seven".