1881373049 has 8 divisors (see below), whose sum is σ = 1899298368. Its totient is φ = 1863532720.

The previous prime is 1881373033. The next prime is 1881373079. The reversal of 1881373049 is 9403731881.

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 1881373049 - 2⁴ = 1881373033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1881373079) 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, 23684 + ... + 65754.

It is an arithmetic number, because the mean of its divisors is an integer number (237412296).

Almost surely, 2^1881373049 is an apocalyptic number.

It is an amenable number.

1881373049 is a deficient number, since it is larger than the sum of its proper divisors (17925319).

1881373049 is a wasteful number, since it uses less digits than its factorization.

1881373049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42495.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1881373049 is about 43374.7973943395. The cubic root of 1881373049 is about 1234.5015497400.

The spelling of 1881373049 in words is "one billion, eight hundred eighty-one million, three hundred seventy-three thousand, forty-nine".