612785587216 has 30 divisors (see below), whose sum is σ = 1305018070286. Its totient is φ = 278538902400.

The previous prime is 612785587201. The next prime is 612785587223.

612785587216 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 414942105600 + 197843481616 = 644160^2 + 444796^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158258805 + ... + 158262676.

Almost surely, 2^612785587216 is an apocalyptic number.

It is an amenable number.

612785587216 is an abundant number, since it is smaller than the sum of its proper divisors (692232483070).

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

612785587216 is a wasteful number, since it uses less digits than its factorization.

612785587216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316521511 (or 316521494 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 58.

The spelling of 612785587216 in words is "six hundred twelve billion, seven hundred eighty-five million, five hundred eighty-seven thousand, two hundred sixteen".