611228907850 has 48 divisors (see below), whose sum is σ = 1246732632576. Its totient is φ = 221101328000.

The previous prime is 611228907841. The next prime is 611228907851. The reversal of 611228907850 is 58709822116.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 611228907794 and 611228907803.

It is not an unprimeable number, because it can be changed into a prime (611228907851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2804179 + ... + 3014278.

It is an arithmetic number, because the mean of its divisors is an integer number (25973596512).

Almost surely, 2^611228907850 is an apocalyptic number.

611228907850 is an abundant number, since it is smaller than the sum of its proper divisors (635503724726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611228907850 is a wasteful number, since it uses less digits than its factorization.

611228907850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818671 (or 5818666 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 611228907850 in words is "six hundred eleven billion, two hundred twenty-eight million, nine hundred seven thousand, eight hundred fifty".