623843206654 has 16 divisors (see below), whose sum is σ = 953312037696. Its totient is φ = 306096256800.

The previous prime is 623843206643. The next prime is 623843206751. The reversal of 623843206654 is 456602348326.

It is a junction number, because it is equal to n+sod(n) for n = 623843206598 and 623843206607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5879517 + ... + 5984680.

It is an arithmetic number, because the mean of its divisors is an integer number (59582002356).

Almost surely, 2^623843206654 is an apocalyptic number.

623843206654 is a deficient number, since it is larger than the sum of its proper divisors (329468831042).

623843206654 is a wasteful number, since it uses less digits than its factorization.

623843206654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11864691.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 623843206654 in words is "six hundred twenty-three billion, eight hundred forty-three million, two hundred six thousand, six hundred fifty-four".