1944538063 has 8 divisors (see below), whose sum is σ = 2094461600. Its totient is φ = 1794663648.

The previous prime is 1944538049. The next prime is 1944538067. The reversal of 1944538063 is 3608354491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1944538063 - 2¹⁷ = 1944406991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944538067) 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, 139453 + ... + 152761.

It is an arithmetic number, because the mean of its divisors is an integer number (261807700).

Almost surely, 2^1944538063 is an apocalyptic number.

1944538063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1944538063 is a deficient number, since it is larger than the sum of its proper divisors (149923537).

1944538063 is a wasteful number, since it uses less digits than its factorization.

1944538063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24561.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 1944538063 is about 44096.9167062732. The cubic root of 1944538063 is about 1248.1654289030.

The spelling of 1944538063 in words is "one billion, nine hundred forty-four million, five hundred thirty-eight thousand, sixty-three".