623947183648 has 12 divisors (see below), whose sum is σ = 1228396017870. Its totient is φ = 311973591808.

The previous prime is 623947183609. The next prime is 623947183649. The reversal of 623947183648 is 846381749326.

It can be written as a sum of positive squares in only one way, i.e., 544956956944 + 78990226704 = 738212^2 + 281052^2 .

It is not an unprimeable number, because it can be changed into a prime (623947183649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9749174713 + ... + 9749174776.

Almost surely, 2^623947183648 is an apocalyptic number.

It is an amenable number.

623947183648 is a deficient number, since it is larger than the sum of its proper divisors (604448834222).

623947183648 is a wasteful number, since it uses less digits than its factorization.

623947183648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19498349499 (or 19498349491 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 61.

The spelling of 623947183648 in words is "six hundred twenty-three billion, nine hundred forty-seven million, one hundred eighty-three thousand, six hundred forty-eight".