1368293643 has 6 divisors (see below), whose sum is σ = 1976424164. Its totient is φ = 912195756.

The previous prime is 1368293629. The next prime is 1368293681. The reversal of 1368293643 is 3463928631.

It is not a de Polignac number, because 1368293643 - 2⁴ = 1368293627 is a prime.

It is a super-2 number, since 2×1368293643² = 3744454986948422898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368292643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76016305 + ... + 76016322.

Almost surely, 2^1368293643 is an apocalyptic number.

1368293643 is a deficient number, since it is larger than the sum of its proper divisors (608130521).

1368293643 is a wasteful number, since it uses less digits than its factorization.

1368293643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152032633 (or 152032630 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 1368293643 is about 36990.4534035472. The cubic root of 1368293643 is about 1110.1792430289.

The spelling of 1368293643 in words is "one billion, three hundred sixty-eight million, two hundred ninety-three thousand, six hundred forty-three".