612400773680 has 40 divisors (see below), whose sum is σ = 1434224757312. Its totient is φ = 243172273664.

The previous prime is 612400773679. The next prime is 612400773683. The reversal of 612400773680 is 86377004216.

612400773680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (612400773683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27927032 + ... + 27948951.

Almost surely, 2^612400773680 is an apocalyptic number.

It is an amenable number.

612400773680 is an abundant number, since it is smaller than the sum of its proper divisors (821823983632).

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

612400773680 is a wasteful number, since it uses less digits than its factorization.

612400773680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55876133 (or 55876127 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

Adding to 612400773680 its reverse (86377004216), we get a palindrome (698777777896).

The spelling of 612400773680 in words is "six hundred twelve billion, four hundred million, seven hundred seventy-three thousand, six hundred eighty".