611254621012 has 12 divisors (see below), whose sum is σ = 1222509242080. Its totient is φ = 261966266136.

The previous prime is 611254620989. The next prime is 611254621027. The reversal of 611254621012 is 210126452116.

It is a happy number.

611254621012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10915261062 + ... + 10915261117.

Almost surely, 2^611254621012 is an apocalyptic number.

It is an amenable number.

611254621012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

611254621012 is a wasteful number, since it uses less digits than its factorization.

611254621012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21830522190 (or 21830522188 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 611254621012 in words is "six hundred eleven billion, two hundred fifty-four million, six hundred twenty-one thousand, twelve".