1401444726144 has 32 divisors (see below), whose sum is σ = 3722587554840. Its totient is φ = 467148241920.

The previous prime is 1401444726109. The next prime is 1401444726161. The reversal of 1401444726144 is 4416274441041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 1401444726096 and 1401444726105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1824797437 + ... + 1824798204.

Almost surely, 2^{1401444726144} is an apocalyptic number.

It is an amenable number.

1401444726144 is an abundant number, since it is smaller than the sum of its proper divisors (2321142828696).

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

1401444726144 is an equidigital number, since it uses as much as digits as its factorization.

1401444726144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649595658 (or 3649595646 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 42.

The spelling of 1401444726144 in words is "one trillion, four hundred one billion, four hundred forty-four million, seven hundred twenty-six thousand, one hundred forty-four".