1368213619 has 2 divisors, whose sum is σ = 1368213620. Its totient is φ = 1368213618.

The previous prime is 1368213493. The next prime is 1368213629. The reversal of 1368213619 is 9163128631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1368213619 - 2¹³ = 1368205427 is a prime.

It is a super-2 number, since 2×1368213619² = 3744017014434154322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1368213629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684106809 + 684106810.

It is an arithmetic number, because the mean of its divisors is an integer number (684106810).

Almost surely, 2^1368213619 is an apocalyptic number.

1368213619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368213619 is an equidigital number, since it uses as much as digits as its factorization.

1368213619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 1368213619 is about 36989.3717032339. The cubic root of 1368213619 is about 1110.1575998394.

The spelling of 1368213619 in words is "one billion, three hundred sixty-eight million, two hundred thirteen thousand, six hundred nineteen".