619584949847 has 4 divisors (see below), whose sum is σ = 619590508296. Its totient is φ = 619579391400.

The previous prime is 619584949799. The next prime is 619584949849. The reversal of 619584949847 is 748949485916.

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 619584949847 - 2⁶ = 619584949783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619584949849) 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, 2608529 + ... + 2836122.

It is an arithmetic number, because the mean of its divisors is an integer number (154897627074).

Almost surely, 2^619584949847 is an apocalyptic number.

619584949847 is a deficient number, since it is larger than the sum of its proper divisors (5558449).

619584949847 is a wasteful number, since it uses less digits than its factorization.

619584949847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5558448.

The product of its digits is 627056640, while the sum is 74.

The spelling of 619584949847 in words is "six hundred nineteen billion, five hundred eighty-four million, nine hundred forty-nine thousand, eight hundred forty-seven".