1387353207688 has 64 divisors (see below), whose sum is σ = 3021969974400. Its totient is φ = 584768056320.

The previous prime is 1387353207671. The next prime is 1387353207803. The reversal of 1387353207688 is 8867023537831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42844368 + ... + 42876736.

It is an arithmetic number, because the mean of its divisors is an integer number (47218280850).

Almost surely, 2^{1387353207688} is an apocalyptic number.

It is an amenable number.

1387353207688 is an abundant number, since it is smaller than the sum of its proper divisors (1634616766712).

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

1387353207688 is a wasteful number, since it uses less digits than its factorization.

1387353207688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44990 (or 44986 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 1387353207688 in words is "one trillion, three hundred eighty-seven billion, three hundred fifty-three million, two hundred seven thousand, six hundred eighty-eight".