1443990542907 has 16 divisors (see below), whose sum is σ = 2223899874432. Its totient is φ = 823666619520.

The previous prime is 1443990542903. The next prime is 1443990542909. The reversal of 1443990542907 is 7092450993441.

It is a happy number.

It is not a de Polignac number, because 1443990542907 - 2² = 1443990542903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1443990542903) 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, 1286978533 + ... + 1286979654.

It is an arithmetic number, because the mean of its divisors is an integer number (138993742152).

Almost surely, 2^{1443990542907} is an apocalyptic number.

1443990542907 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1443990542907 is a deficient number, since it is larger than the sum of its proper divisors (779909331525).

1443990542907 is a wasteful number, since it uses less digits than its factorization.

1443990542907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573958218.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 1443990542907 in words is "one trillion, four hundred forty-three billion, nine hundred ninety million, five hundred forty-two thousand, nine hundred seven".