612485787648 has 624 divisors, whose sum is σ = 2051240021280. Its totient is φ = 161451343872.

The previous prime is 612485787623. The next prime is 612485787649. The reversal of 612485787648 is 846787584216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612485787649) 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, 542502348 + ... + 542503476.

Almost surely, 2^612485787648 is an apocalyptic number.

612485787648 is a gapful number since it is divisible by the number (68) 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 612485787648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025620010640).

612485787648 is an abundant number, since it is smaller than the sum of its proper divisors (1438754233632).

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

612485787648 is a wasteful number, since it uses less digits than its factorization.

612485787648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1211 counting only the distinct ones).

The product of its digits is 144506880, while the sum is 66.

The spelling of 612485787648 in words is "six hundred twelve billion, four hundred eighty-five million, seven hundred eighty-seven thousand, six hundred forty-eight".