1389845405050 has 24 divisors (see below), whose sum is σ = 2588108029056. Its totient is φ = 555293952240.

The previous prime is 1389845404999. The next prime is 1389845405107. The reversal of 1389845405050 is 505045489831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16061664 + ... + 16147963.

It is an arithmetic number, because the mean of its divisors is an integer number (107837834544).

Almost surely, 2^{1389845405050} is an apocalyptic number.

1389845405050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1389845405050 is a deficient number, since it is larger than the sum of its proper divisors (1198262624006).

1389845405050 is a wasteful number, since it uses less digits than its factorization.

1389845405050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32210502 (or 32210497 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 52.

The spelling of 1389845405050 in words is "one trillion, three hundred eighty-nine billion, eight hundred forty-five million, four hundred five thousand, fifty".