1938785291027 has 8 divisors (see below), whose sum is σ = 2087943231360. Its totient is φ = 1789630295040.

The previous prime is 1938785291021. The next prime is 1938785291083. The reversal of 1938785291027 is 7201925878391.

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 1938785291027 - 2¹² = 1938785286931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1938785291021) 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, 741374 + ... + 2104092.

It is an arithmetic number, because the mean of its divisors is an integer number (260992903920).

Almost surely, 2^{1938785291027} is an apocalyptic number.

1938785291027 is a deficient number, since it is larger than the sum of its proper divisors (149157940333).

1938785291027 is a wasteful number, since it uses less digits than its factorization.

1938785291027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472173.

The product of its (nonzero) digits is 15240960, while the sum is 62.

The spelling of 1938785291027 in words is "one trillion, nine hundred thirty-eight billion, seven hundred eighty-five million, two hundred ninety-one thousand, twenty-seven".