1368812881 has 8 divisors (see below), whose sum is σ = 1403571680. Its totient is φ = 1334475648.

The previous prime is 1368812867. The next prime is 1368812897. The reversal of 1368812881 is 1882188631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1368812881 - 2¹⁵ = 1368780113 is a prime.

It is a super-2 number, since 2×1368812881² = 3747297406383040322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368812281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98811 + ... + 111808.

It is an arithmetic number, because the mean of its divisors is an integer number (175446460).

Almost surely, 2^1368812881 is an apocalyptic number.

1368812881 is the 21361-st hex number.

It is an amenable number.

1368812881 is a deficient number, since it is larger than the sum of its proper divisors (34758799).

1368812881 is an equidigital number, since it uses as much as digits as its factorization.

1368812881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210783.

The product of its digits is 147456, while the sum is 46.

The square root of 1368812881 is about 36997.4712784536. The cubic root of 1368812881 is about 1110.3196549821.

It can be divided in two parts, 13688 and 12881, that added together give a square (26569 = 163²).

The spelling of 1368812881 in words is "one billion, three hundred sixty-eight million, eight hundred twelve thousand, eight hundred eighty-one".