14443978001780 has 24 divisors (see below), whose sum is σ = 30340097740008. Its totient is φ = 5776116165248.

The previous prime is 14443978001779. The next prime is 14443978001797. The reversal of 14443978001780 is 8710087934441.

It can be written as a sum of positive squares in 4 ways, for example, as 4431892302436 + 10012085699344 = 2105206^2 + 3164188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92109419 + ... + 92266098.

It is an arithmetic number, because the mean of its divisors is an integer number (1264170739167).

Almost surely, 2^{14443978001780} is an apocalyptic number.

14443978001780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14443978001780 is an abundant number, since it is smaller than the sum of its proper divisors (15896119738228).

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

14443978001780 is a wasteful number, since it uses less digits than its factorization.

14443978001780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184379443 (or 184379441 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 14443978001780 in words is "fourteen trillion, four hundred forty-three billion, nine hundred seventy-eight million, one thousand, seven hundred eighty".