1938066263 has 8 divisors (see below), whose sum is σ = 2220515232. Its totient is φ = 1657012896.

The previous prime is 1938066257. The next prime is 1938066271. The reversal of 1938066263 is 3626608391.

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

It is not a de Polignac number, because 1938066263 - 2¹⁴ = 1938049879 is a prime.

It is a super-2 number, since 2×1938066263² = 7512201679557570338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938066203) 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, 345920 + ... + 351477.

It is an arithmetic number, because the mean of its divisors is an integer number (277564404).

Almost surely, 2^1938066263 is an apocalyptic number.

1938066263 is a deficient number, since it is larger than the sum of its proper divisors (282448969).

1938066263 is an equidigital number, since it uses as much as digits as its factorization.

1938066263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697801.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 1938066263 is about 44023.4739996743. The cubic root of 1938066263 is about 1246.7791776104.

The spelling of 1938066263 in words is "one billion, nine hundred thirty-eight million, sixty-six thousand, two hundred sixty-three".