612879512 has 32 divisors (see below), whose sum is σ = 1390569120. Its totient is φ = 247211520.

The previous prime is 612879503. The next prime is 612879539. The reversal of 612879512 is 215978216.

It is a self number, because there is not a number n which added to its sum of digits gives 612879512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320939 + ... + 322842.

It is an arithmetic number, because the mean of its divisors is an integer number (43455285).

Almost surely, 2^612879512 is an apocalyptic number.

It is an amenable number.

612879512 is an abundant number, since it is smaller than the sum of its proper divisors (777689608).

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

612879512 is a wasteful number, since it uses less digits than its factorization.

612879512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643811 (or 643807 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The square root of 612879512 is about 24756.4034544600. The cubic root of 612879512 is about 849.4249914978.

The spelling of 612879512 in words is "six hundred twelve million, eight hundred seventy-nine thousand, five hundred twelve".