1389153709650 has 192 divisors, whose sum is σ = 3976683475968. Its totient is φ = 314345391360.

The previous prime is 1389153709633. The next prime is 1389153709661. The reversal of 1389153709650 is 569073519831.

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 95 ways as a sum of consecutive naturals, for example, 225033964 + ... + 225040136.

It is an arithmetic number, because the mean of its divisors is an integer number (20711893104).

Almost surely, 2^{1389153709650} is an apocalyptic number.

1389153709650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1389153709650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988341737984).

1389153709650 is an abundant number, since it is smaller than the sum of its proper divisors (2587529766318).

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

1389153709650 is a wasteful number, since it uses less digits than its factorization.

1389153709650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8305 (or 8300 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 57.

The spelling of 1389153709650 in words is "one trillion, three hundred eighty-nine billion, one hundred fifty-three million, seven hundred nine thousand, six hundred fifty".