612512233421 has 8 divisors (see below), whose sum is σ = 668488130688. Its totient is φ = 556585164000.

The previous prime is 612512233391. The next prime is 612512233423. The reversal of 612512233421 is 124332215216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612512233421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612512233423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12180725 + ... + 12230906.

It is an arithmetic number, because the mean of its divisors is an integer number (83561016336).

Almost surely, 2^612512233421 is an apocalyptic number.

It is an amenable number.

612512233421 is a deficient number, since it is larger than the sum of its proper divisors (55975897267).

612512233421 is a wasteful number, since it uses less digits than its factorization.

612512233421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24413923.

The product of its digits is 17280, while the sum is 32.

Adding to 612512233421 its reverse (124332215216), we get a palindrome (736844448637).

The spelling of 612512233421 in words is "six hundred twelve billion, five hundred twelve million, two hundred thirty-three thousand, four hundred twenty-one".