1368553839 has 8 divisors (see below), whose sum is σ = 1932076080. Its totient is φ = 858700416.

The previous prime is 1368553799. The next prime is 1368553847. The reversal of 1368553839 is 9383558631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1368553839 - 2⁸ = 1368553583 is a prime.

It is a super-2 number, since 2×1368553839² = 3745879220483275842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 26834389 = 1368553839 / (1 + 3 + 6 + 8 + 5 + 5 + 3 + 8 + 3 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 1368553791 and 1368553800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368553139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13417144 + ... + 13417245.

It is an arithmetic number, because the mean of its divisors is an integer number (241509510).

Almost surely, 2^1368553839 is an apocalyptic number.

1368553839 is a deficient number, since it is larger than the sum of its proper divisors (563522241).

1368553839 is a wasteful number, since it uses less digits than its factorization.

1368553839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26834409.

The product of its digits is 2332800, while the sum is 51.

The square root of 1368553839 is about 36993.9703059836. The cubic root of 1368553839 is about 1110.2496094768.

The spelling of 1368553839 in words is "one billion, three hundred sixty-eight million, five hundred fifty-three thousand, eight hundred thirty-nine".