3981273119 has 4 divisors (see below), whose sum is σ = 3983268744. Its totient is φ = 3979277496.

The previous prime is 3981273103. The next prime is 3981273137. The reversal of 3981273119 is 9113721893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3981273119 - 2⁴ = 3981273103 is a prime.

It is a super-2 number, since 2×3981273119² = 31701071296143976322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3981273119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981273139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994817 + ... + 998810.

It is an arithmetic number, because the mean of its divisors is an integer number (995817186).

Almost surely, 2^3981273119 is an apocalyptic number.

3981273119 is a deficient number, since it is larger than the sum of its proper divisors (1995625).

3981273119 is a wasteful number, since it uses less digits than its factorization.

3981273119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995624.

The product of its digits is 81648, while the sum is 44.

The square root of 3981273119 is about 63097.3305219801. The cubic root of 3981273119 is about 1584.9199200586.

The spelling of 3981273119 in words is "three billion, nine hundred eighty-one million, two hundred seventy-three thousand, one hundred nineteen".