1868261368 has 16 divisors (see below), whose sum is σ = 3506283000. Its totient is φ = 933252576.

The previous prime is 1868261357. The next prime is 1868261371. The reversal of 1868261368 is 8631628681.

It is a super-2 number, since 2×1868261368² = 6980801078322462848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100678 + ... + 117781.

Almost surely, 2^1868261368 is an apocalyptic number.

It is an amenable number.

1868261368 is a deficient number, since it is larger than the sum of its proper divisors (1638021632).

1868261368 is a wasteful number, since it uses less digits than its factorization.

1868261368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219534 (or 219530 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The square root of 1868261368 is about 43223.3891313488. The cubic root of 1868261368 is about 1231.6270287619.

The spelling of 1868261368 in words is "one billion, eight hundred sixty-eight million, two hundred sixty-one thousand, three hundred sixty-eight".