611123217838 has 16 divisors (see below), whose sum is σ = 1050607628640. Its totient is φ = 261167993856.

The previous prime is 611123217811. The next prime is 611123217857. The reversal of 611123217838 is 838712321116.

It is a junction number, because it is equal to n+sod(n) for n = 611123217794 and 611123217803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61824603 + ... + 61834486.

It is an arithmetic number, because the mean of its divisors is an integer number (65662976790).

Almost surely, 2^611123217838 is an apocalyptic number.

611123217838 is a deficient number, since it is larger than the sum of its proper divisors (439484410802).

611123217838 is a wasteful number, since it uses less digits than its factorization.

611123217838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123659451.

The product of its digits is 96768, while the sum is 43.

The spelling of 611123217838 in words is "six hundred eleven billion, one hundred twenty-three million, two hundred seventeen thousand, eight hundred thirty-eight".