619681606363 has 4 divisors (see below), whose sum is σ = 632866321440. Its totient is φ = 606496891288.

The previous prime is 619681606331. The next prime is 619681606381. The reversal of 619681606363 is 363606186916.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 619681606363 - 2⁵ = 619681606331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (619681606463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6592357468 + ... + 6592357561.

It is an arithmetic number, because the mean of its divisors is an integer number (158216580360).

Almost surely, 2^619681606363 is an apocalyptic number.

619681606363 is a deficient number, since it is larger than the sum of its proper divisors (13184715077).

619681606363 is a wasteful number, since it uses less digits than its factorization.

619681606363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13184715076.

The product of its (nonzero) digits is 5038848, while the sum is 55.

The spelling of 619681606363 in words is "six hundred nineteen billion, six hundred eighty-one million, six hundred six thousand, three hundred sixty-three".