1388493853390 has 64 divisors (see below), whose sum is σ = 2923039848960. Its totient is φ = 464938911360.

The previous prime is 1388493853277. The next prime is 1388493853427. The reversal of 1388493853390 is 933583948831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48570121 + ... + 48598699.

It is an arithmetic number, because the mean of its divisors is an integer number (45672497640).

Almost surely, 2^{1388493853390} is an apocalyptic number.

1388493853390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1388493853390 is an abundant number, since it is smaller than the sum of its proper divisors (1534545995570).

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

1388493853390 is a wasteful number, since it uses less digits than its factorization.

1388493853390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44777.

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 1388493853390 in words is "one trillion, three hundred eighty-eight billion, four hundred ninety-three million, eight hundred fifty-three thousand, three hundred ninety".