619848881 has 2 divisors, whose sum is σ = 619848882. Its totient is φ = 619848880.

The previous prime is 619848863. The next prime is 619848893. The reversal of 619848881 is 188848916.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 542144656 + 77704225 = 23284^2 + 8815^2 .

It is a cyclic number.

It is not a de Polignac number, because 619848881 - 2¹⁰ = 619847857 is a prime.

It is a super-2 number, since 2×619848881² = 768425270553904322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (619848811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309924440 + 309924441.

It is an arithmetic number, because the mean of its divisors is an integer number (309924441).

Almost surely, 2^619848881 is an apocalyptic number.

It is an amenable number.

619848881 is a deficient number, since it is larger than the sum of its proper divisors (1).

619848881 is an equidigital number, since it uses as much as digits as its factorization.

619848881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 53.

The square root of 619848881 is about 24896.7644685007. The cubic root of 619848881 is about 852.6326134201.

The spelling of 619848881 in words is "six hundred nineteen million, eight hundred forty-eight thousand, eight hundred eighty-one".