1881945023 has 8 divisors (see below), whose sum is σ = 2208924192. Its totient is φ = 1569498336.

The previous prime is 1881945011. The next prime is 1881945029. The reversal of 1881945023 is 3205491881.

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

It is not a de Polignac number, because 1881945023 - 2¹⁶ = 1881879487 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 (1881945029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3632840 + ... + 3633357.

It is an arithmetic number, because the mean of its divisors is an integer number (276115524).

Almost surely, 2^1881945023 is an apocalyptic number.

1881945023 is a deficient number, since it is larger than the sum of its proper divisors (326979169).

1881945023 is an equidigital number, since it uses as much as digits as its factorization.

1881945023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7266241.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 1881945023 is about 43381.3902843143. The cubic root of 1881945023 is about 1234.6266412250.

The spelling of 1881945023 in words is "one billion, eight hundred eighty-one million, nine hundred forty-five thousand, twenty-three".