1368021692813 has 8 divisors (see below), whose sum is σ = 1440064321920. Its totient is φ = 1295983212480.

The previous prime is 1368021692801. The next prime is 1368021692833. The reversal of 1368021692813 is 3182961208631.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1368021692813 - 2⁶ = 1368021692749 is a prime.

It is a super-2 number, since 2×1368021692813² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368021692833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348620 + ... + 1690437.

It is an arithmetic number, because the mean of its divisors is an integer number (180008040240).

Almost surely, 2^{1368021692813} is an apocalyptic number.

It is an amenable number.

1368021692813 is a deficient number, since it is larger than the sum of its proper divisors (72042629107).

1368021692813 is a wasteful number, since it uses less digits than its factorization.

1368021692813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074387.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 1368021692813 in words is "one trillion, three hundred sixty-eight billion, twenty-one million, six hundred ninety-two thousand, eight hundred thirteen".