1368991712 has 96 divisors (see below), whose sum is σ = 3038847840. Its totient is φ = 601620480.

The previous prime is 1368991697. The next prime is 1368991727. The reversal of 1368991712 is 2171998631.

It is an interprime number because it is at equal distance from previous prime (1368991697) and next prime (1368991727).

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, 3346964 + ... + 3347372.

It is an arithmetic number, because the mean of its divisors is an integer number (31654665).

Almost surely, 2^1368991712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368991712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1519423920).

1368991712 is an abundant number, since it is smaller than the sum of its proper divisors (1669856128).

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

1368991712 is a wasteful number, since it uses less digits than its factorization.

1368991712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 716 counting only the distinct ones).

The product of its digits is 163296, while the sum is 47.

The square root of 1368991712 is about 36999.8879998305. The cubic root of 1368991712 is about 1110.3680061070.

The spelling of 1368991712 in words is "one billion, three hundred sixty-eight million, nine hundred ninety-one thousand, seven hundred twelve".