612046440564 has 48 divisors (see below), whose sum is σ = 1618908271680. Its totient is φ = 178410297600.

The previous prime is 612046440553. The next prime is 612046440569. The reversal of 612046440564 is 465044640216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612046440569) 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 15 ways as a sum of consecutive naturals, for example, 103243737 + ... + 103249664.

It is an arithmetic number, because the mean of its divisors is an integer number (33727255660).

Almost surely, 2^612046440564 is an apocalyptic number.

It is an amenable number.

612046440564 is an abundant number, since it is smaller than the sum of its proper divisors (1006861831116).

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

612046440564 is a wasteful number, since it uses less digits than its factorization.

612046440564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206493440 (or 206493438 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 612046440564 in words is "six hundred twelve billion, forty-six million, four hundred forty thousand, five hundred sixty-four".