619780638484799 has 16 divisors (see below), whose sum is σ = 678766401791520. Its totient is φ = 561236426156160.

The previous prime is 619780638484789. The next prime is 619780638484817. The reversal of 619780638484799 is 997484836087916.

It is a cyclic number.

It is not a de Polignac number, because 619780638484799 - 2²⁰ = 619780637436223 is a prime.

It is a super-2 number, since 2×619780638484799² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619780638484789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19874684 + ... + 40429745.

It is an arithmetic number, because the mean of its divisors is an integer number (42422900111970).

Almost surely, 2^{619780638484799} is an apocalyptic number.

619780638484799 is a deficient number, since it is larger than the sum of its proper divisors (58985763306721).

619780638484799 is a wasteful number, since it uses less digits than its factorization.

619780638484799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60308090.

The product of its (nonzero) digits is 31603654656, while the sum is 89.

The spelling of 619780638484799 in words is "six hundred nineteen trillion, seven hundred eighty billion, six hundred thirty-eight million, four hundred eighty-four thousand, seven hundred ninety-nine".