619537230868 has 6 divisors (see below), whose sum is σ = 1084190154026. Its totient is φ = 309768615432.

The previous prime is 619537230859. The next prime is 619537230869. The reversal of 619537230868 is 868032735916.

It can be written as a sum of positive squares in only one way, i.e., 377366947204 + 242170283664 = 614302^2 + 492108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619537230869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77442153855 + ... + 77442153862.

Almost surely, 2^619537230868 is an apocalyptic number.

It is an amenable number.

619537230868 is a deficient number, since it is larger than the sum of its proper divisors (464652923158).

619537230868 is a wasteful number, since it uses less digits than its factorization.

619537230868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154884307721 (or 154884307719 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 619537230868 in words is "six hundred nineteen billion, five hundred thirty-seven million, two hundred thirty thousand, eight hundred sixty-eight".