1399712045508 has 288 divisors, whose sum is σ = 4367795927040. Its totient is φ = 369448335360.

The previous prime is 1399712045489. The next prime is 1399712045569. The reversal of 1399712045508 is 8055402179931.

It is a happy number.

1399712045508 is a `hidden beast` number, since 1 + 3 + 9 + 9 + 7 + 120 + 4 + 5 + 508 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15273648 + ... + 15365016.

It is an arithmetic number, because the mean of its divisors is an integer number (15165958080).

Almost surely, 2^{1399712045508} is an apocalyptic number.

1399712045508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1399712045508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2183897963520).

1399712045508 is an abundant number, since it is smaller than the sum of its proper divisors (2968083881532).

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

1399712045508 is a wasteful number, since it uses less digits than its factorization.

1399712045508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91507 (or 91502 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 1399712045508 in words is "one trillion, three hundred ninety-nine billion, seven hundred twelve million, forty-five thousand, five hundred eight".