612450238464 has 153 divisors (see below), whose sum is σ = 1771025191663. Its totient is φ = 203949735936.

The previous prime is 612450238427. The next prime is 612450238469. The reversal of 612450238464 is 464832054216.

The square root of 612450238464 is 782592.

It is a perfect power (a square), and thus also a powerful number.

612450238464 is a `hidden beast` number, since 6 + 1 + 2 + 4 + 502 + 3 + 84 + 64 = 666.

It is a super-2 number, since 2×612450238464² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612450238469) 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 8 ways as a sum of consecutive naturals, for example, 601030147 + ... + 601031165.

Almost surely, 2^612450238464 is an apocalyptic number.

612450238464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

612450238464 is the 782592-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612450238464

612450238464 is an abundant number, since it is smaller than the sum of its proper divisors (1158574953199).

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

612450238464 is an frugal number, since it uses more digits than its factorization.

612450238464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 612450238464 in words is "six hundred twelve billion, four hundred fifty million, two hundred thirty-eight thousand, four hundred sixty-four".