1368613686 has 32 divisors (see below), whose sum is σ = 2987703936. Its totient is φ = 414504000.

The previous prime is 1368613667. The next prime is 1368613693. The reversal of 1368613686 is 6863168631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146001 + ... + 155091.

It is an arithmetic number, because the mean of its divisors is an integer number (93365748).

Almost surely, 2^1368613686 is an apocalyptic number.

1368613686 is an abundant number, since it is smaller than the sum of its proper divisors (1619090250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1368613686 is a wasteful number, since it uses less digits than its factorization.

1368613686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11388.

The product of its digits is 746496, while the sum is 48.

The square root of 1368613686 is about 36994.7791722021. The cubic root of 1368613686 is about 1110.2657930174.

Subtracting 1368613686 from its reverse (6863168631), we obtain a palindrome (5494554945).

It can be divided in two parts, 13686 and 13686, that added together give a palindrome (27372).

The spelling of 1368613686 in words is "one billion, three hundred sixty-eight million, six hundred thirteen thousand, six hundred eighty-six".