1368416737 has 2 divisors, whose sum is σ = 1368416738. Its totient is φ = 1368416736.

The previous prime is 1368416729. The next prime is 1368416743. The reversal of 1368416737 is 7376148631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1322122321 + 46294416 = 36361^2 + 6804^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368416737 - 2³ = 1368416729 is a prime.

It is a super-2 number, since 2×1368416737² = 3745128732203454338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1368416747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684208368 + 684208369.

It is an arithmetic number, because the mean of its divisors is an integer number (684208369).

Almost surely, 2^1368416737 is an apocalyptic number.

It is an amenable number.

1368416737 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368416737 is an equidigital number, since it uses as much as digits as its factorization.

1368416737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 1368416737 is about 36992.1172278636. The cubic root of 1368416737 is about 1110.2125332286.

The spelling of 1368416737 in words is "one billion, three hundred sixty-eight million, four hundred sixteen thousand, seven hundred thirty-seven".