623200055447 has 4 divisors (see below), whose sum is σ = 659858882256. Its totient is φ = 586541228640.

The previous prime is 623200055419. The next prime is 623200055483. The reversal of 623200055447 is 744550002326.

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 623200055447 - 2¹² = 623200051351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 623200055447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623200058447) 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, 18329413379 + ... + 18329413412.

It is an arithmetic number, because the mean of its divisors is an integer number (164964720564).

Almost surely, 2^623200055447 is an apocalyptic number.

623200055447 is a deficient number, since it is larger than the sum of its proper divisors (36658826809).

623200055447 is a wasteful number, since it uses less digits than its factorization.

623200055447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36658826808.

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 623200055447 in words is "six hundred twenty-three billion, two hundred million, fifty-five thousand, four hundred forty-seven".