612512712 has 256 divisors, whose sum is σ = 2053440000. Its totient is φ = 165473280.

The previous prime is 612512711. The next prime is 612512723. The reversal of 612512712 is 217215216.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (612512711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2674614 + ... + 2674842.

It is an arithmetic number, because the mean of its divisors is an integer number (8021250).

Almost surely, 2^612512712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612512712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1026720000).

612512712 is an abundant number, since it is smaller than the sum of its proper divisors (1440927288).

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

612512712 is a wasteful number, since it uses less digits than its factorization.

612512712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 331 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 612512712 is about 24748.9941613796. The cubic root of 612512712 is about 849.2555012701.

Adding to 612512712 its reverse (217215216), we get a palindrome (829727928).

The spelling of 612512712 in words is "six hundred twelve million, five hundred twelve thousand, seven hundred twelve".