1368736845 has 24 divisors (see below), whose sum is σ = 2547527904. Its totient is φ = 625707936.

The previous prime is 1368736841. The next prime is 1368736847. The reversal of 1368736845 is 5486378631.

It is not a de Polignac number, because 1368736845 - 2² = 1368736841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368736841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 930379 + ... + 931848.

It is an arithmetic number, because the mean of its divisors is an integer number (106146996).

Almost surely, 2^1368736845 is an apocalyptic number.

1368736845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1368736845 is a deficient number, since it is larger than the sum of its proper divisors (1178791059).

1368736845 is a wasteful number, since it uses less digits than its factorization.

1368736845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862249 (or 1862242 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The square root of 1368736845 is about 36996.4436804404. The cubic root of 1368736845 is about 1110.2990956030.

The spelling of 1368736845 in words is "one billion, three hundred sixty-eight million, seven hundred thirty-six thousand, eight hundred forty-five".