612740425761 has 32 divisors (see below), whose sum is σ = 909943632000. Its totient is φ = 407513804544.

The previous prime is 612740425747. The next prime is 612740425831. The reversal of 612740425761 is 167524047216.

612740425761 is a `hidden beast` number, since 6 + 1 + 2 + 74 + 0 + 4 + 2 + 576 + 1 = 666.

It is not a de Polignac number, because 612740425761 - 2³³ = 604150491169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612740425721) 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 31 ways as a sum of consecutive naturals, for example, 19271485 + ... + 19303253.

It is an arithmetic number, because the mean of its divisors is an integer number (28435738500).

Almost surely, 2^612740425761 is an apocalyptic number.

It is an amenable number.

612740425761 is a deficient number, since it is larger than the sum of its proper divisors (297203206239).

612740425761 is a wasteful number, since it uses less digits than its factorization.

612740425761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33470 (or 33464 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 612740425761 in words is "six hundred twelve billion, seven hundred forty million, four hundred twenty-five thousand, seven hundred sixty-one".