1368839787840 has 1120 divisors, whose sum is σ = 6202524430080. Its totient is φ = 278962569216.

The previous prime is 1368839787839. The next prime is 1368839787881. The reversal of 1368839787840 is 487879388631.

1368839787840 is a `hidden beast` number, since 1 + 3 + 6 + 88 + 397 + 87 + 84 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 58593442 + ... + 58616798.

Almost surely, 2^{1368839787840} is an apocalyptic number.

1368839787840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368839787840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3101262215040).

1368839787840 is an abundant number, since it is smaller than the sum of its proper divisors (4833684642240).

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

1368839787840 is a wasteful number, since it uses less digits than its factorization.

1368839787840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23429 (or 23410 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 72.

The spelling of 1368839787840 in words is "one trillion, three hundred sixty-eight billion, eight hundred thirty-nine million, seven hundred eighty-seven thousand, eight hundred forty".