1368142658 has 4 divisors (see below), whose sum is σ = 2052213990. Its totient is φ = 684071328.

The previous prime is 1368142639. The next prime is 1368142751. The reversal of 1368142658 is 8562418631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 917302369 + 450840289 = 30287^2 + 21233^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342035663 + ... + 342035666.

Almost surely, 2^1368142658 is an apocalyptic number.

1368142658 is a deficient number, since it is larger than the sum of its proper divisors (684071332).

1368142658 is an equidigital number, since it uses as much as digits as its factorization.

1368142658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684071331.

The product of its digits is 276480, while the sum is 44.

The square root of 1368142658 is about 36988.4124828303. The cubic root of 1368142658 is about 1110.1384071115.

The spelling of 1368142658 in words is "one billion, three hundred sixty-eight million, one hundred forty-two thousand, six hundred fifty-eight".