612737361920 has 96 divisors (see below), whose sum is σ = 1492155756000. Its totient is φ = 241436540928.

The previous prime is 612737361877. The next prime is 612737361923. The reversal of 612737361920 is 29163737216.

It is not an unprimeable number, because it can be changed into a prime (612737361923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239531 + ... + 1132629.

It is an arithmetic number, because the mean of its divisors is an integer number (15543289125).

Almost surely, 2^612737361920 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 612737361920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746077878000).

612737361920 is an abundant number, since it is smaller than the sum of its proper divisors (879418394080).

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

612737361920 is an equidigital number, since it uses as much as digits as its factorization.

612737361920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893193 (or 893173 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 612737361920 in words is "six hundred twelve billion, seven hundred thirty-seven million, three hundred sixty-one thousand, nine hundred twenty".