1874784881 has 2 divisors, whose sum is σ = 1874784882. Its totient is φ = 1874784880.

The previous prime is 1874784869. The next prime is 1874784883. The reversal of 1874784881 is 1884874781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1376781025 + 498003856 = 37105^2 + 22316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1874784881 is a prime.

It is a super-2 number, since 2×1874784881² = 7029636700052368322, which contains 22 as substring.

Together with 1874784883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1874784883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937392440 + 937392441.

It is an arithmetic number, because the mean of its divisors is an integer number (937392441).

Almost surely, 2^1874784881 is an apocalyptic number.

It is an amenable number.

1874784881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1874784881 is an equidigital number, since it uses as much as digits as its factorization.

1874784881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3211264, while the sum is 56.

The square root of 1874784881 is about 43298.7861377198. The cubic root of 1874784881 is about 1233.0588772216.

The spelling of 1874784881 in words is "one billion, eight hundred seventy-four million, seven hundred eighty-four thousand, eight hundred eighty-one".