612307789436 has 12 divisors (see below), whose sum is σ = 1224615578928. Its totient is φ = 262417624032.

The previous prime is 612307789417. The next prime is 612307789463. The reversal of 612307789436 is 634987703216.

612307789436 is an admirable number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10934067641 + ... + 10934067696.

It is an arithmetic number, because the mean of its divisors is an integer number (102051298244).

Almost surely, 2^612307789436 is an apocalyptic number.

It is an amenable number.

612307789436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

612307789436 is a wasteful number, since it uses less digits than its factorization.

612307789436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21868135348 (or 21868135346 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 612307789436 in words is "six hundred twelve billion, three hundred seven million, seven hundred eighty-nine thousand, four hundred thirty-six".