612253343412 has 144 divisors (see below), whose sum is σ = 1661377536000. Its totient is φ = 196947456480.

The previous prime is 612253343411. The next prime is 612253343419. The reversal of 612253343412 is 214343352216.

612253343412 is a `hidden beast` number, since 61 + 2 + 253 + 3 + 4 + 341 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612253343411) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 10789089 + ... + 10845687.

It is an arithmetic number, because the mean of its divisors is an integer number (11537344000).

Almost surely, 2^612253343412 is an apocalyptic number.

612253343412 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612253343412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830688768000).

612253343412 is an abundant number, since it is smaller than the sum of its proper divisors (1049124192588).

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

612253343412 is a wasteful number, since it uses less digits than its factorization.

612253343412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57008 (or 56994 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

Adding to 612253343412 its reverse (214343352216), we get a palindrome (826596695628).

The spelling of 612253343412 in words is "six hundred twelve billion, two hundred fifty-three million, three hundred forty-three thousand, four hundred twelve".