1368664274 has 4 divisors (see below), whose sum is σ = 2052996414. Its totient is φ = 684332136.

The previous prime is 1368664267. The next prime is 1368664303. The reversal of 1368664274 is 4724668631.

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., 1143454225 + 225210049 = 33815^2 + 15007^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342166067 + ... + 342166070.

Almost surely, 2^1368664274 is an apocalyptic number.

1368664274 is a deficient number, since it is larger than the sum of its proper divisors (684332140).

1368664274 is an equidigital number, since it uses as much as digits as its factorization.

1368664274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684332139.

The product of its digits is 1161216, while the sum is 47.

The square root of 1368664274 is about 36995.4628839808. The cubic root of 1368664274 is about 1110.2794724154.

The spelling of 1368664274 in words is "one billion, three hundred sixty-eight million, six hundred sixty-four thousand, two hundred seventy-four".