1400899986560 has 128 divisors (see below), whose sum is σ = 3541106419200. Its totient is φ = 528485769216.

The previous prime is 1400899986559. The next prime is 1400899986569. The reversal of 1400899986560 is 656899980041.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (1400899986569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2453372 + ... + 2969988.

It is an arithmetic number, because the mean of its divisors is an integer number (27664893900).

Almost surely, 2^{1400899986560} is an apocalyptic number.

1400899986560 is a gapful number since it is divisible by the number (10) 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 1400899986560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1770553209600).

1400899986560 is an abundant number, since it is smaller than the sum of its proper divisors (2140206432640).

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

1400899986560 is a wasteful number, since it uses less digits than its factorization.

1400899986560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516878 (or 516866 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 65.

The spelling of 1400899986560 in words is "one trillion, four hundred billion, eight hundred ninety-nine million, nine hundred eighty-six thousand, five hundred sixty".