617830619992 has 16 divisors (see below), whose sum is σ = 1186686862200. Its totient is φ = 301380790080.

The previous prime is 617830619983. The next prime is 617830619993. The reversal of 617830619992 is 299916038716.

It is a super-2 number, since 2×617830619992² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 617830619992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617830619993) 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, 941814642 + ... + 941815297.

Almost surely, 2^617830619992 is an apocalyptic number.

It is an amenable number.

617830619992 is a deficient number, since it is larger than the sum of its proper divisors (568856242208).

617830619992 is a wasteful number, since it uses less digits than its factorization.

617830619992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883629986 (or 1883629982 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 61.

The spelling of 617830619992 in words is "six hundred seventeen billion, eight hundred thirty million, six hundred nineteen thousand, nine hundred ninety-two".