1368218061 has 48 divisors (see below), whose sum is σ = 2353455104. Its totient is φ = 778117104.

The previous prime is 1368218051. The next prime is 1368218099. The reversal of 1368218061 is 1608128631.

It is not a de Polignac number, because 1368218061 - 2⁵ = 1368218029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368218051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 377520 + ... + 381126.

Almost surely, 2^1368218061 is an apocalyptic number.

It is an amenable number.

1368218061 is a deficient number, since it is larger than the sum of its proper divisors (985237043).

1368218061 is an equidigital number, since it uses as much as digits as its factorization.

1368218061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3852 (or 3840 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1368218061 is about 36989.4317474600. The cubic root of 1368218061 is about 1110.1588012392.

The spelling of 1368218061 in words is "one billion, three hundred sixty-eight million, two hundred eighteen thousand, sixty-one".