1387606568052 has 24 divisors (see below), whose sum is σ = 3244508064000. Its totient is φ = 461569893376.

The previous prime is 1387606568021. The next prime is 1387606568057. The reversal of 1387606568052 is 2508656067831.

It is a junction number, because it is equal to n+sod(n) for n = 1387606567983 and 1387606568001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387606568057) 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, 120697677 + ... + 120709172.

It is an arithmetic number, because the mean of its divisors is an integer number (135187836000).

Almost surely, 2^{1387606568052} is an apocalyptic number.

1387606568052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1387606568052 is an abundant number, since it is smaller than the sum of its proper divisors (1856901495948).

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

1387606568052 is a wasteful number, since it uses less digits than its factorization.

1387606568052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241407335 (or 241407333 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 1387606568052 in words is "one trillion, three hundred eighty-seven billion, six hundred six million, five hundred sixty-eight thousand, fifty-two".