1443412067640 has 32 divisors (see below), whose sum is σ = 4330236203280. Its totient is φ = 384909884672.

The previous prime is 1443412067633. The next prime is 1443412067641. The reversal of 1443412067640 is 467602143441.

It is a super-4 number, since 4×1443412067640⁴ (a number of 50 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1443412067592 and 1443412067601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443412067641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6014216829 + ... + 6014217068.

Almost surely, 2^{1443412067640} is an apocalyptic number.

1443412067640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1443412067640 is an abundant number, since it is smaller than the sum of its proper divisors (2886824135640).

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

1443412067640 is a wasteful number, since it uses less digits than its factorization.

1443412067640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12028433911 (or 12028433907 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 1443412067640 in words is "one trillion, four hundred forty-three billion, four hundred twelve million, sixty-seven thousand, six hundred forty".