620547213233 has 6 divisors (see below), whose sum is σ = 657053429526. Its totient is φ = 584041379072.

The previous prime is 620547213173. The next prime is 620547213239. The reversal of 620547213233 is 332312745026.

It can be written as a sum of positive squares in 3 ways, for example, as 532181922064 + 88365291169 = 729508^2 + 297263^2 .

It is not a de Polignac number, because 620547213233 - 2¹² = 620547209137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620547213239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3152441 + ... + 3343497.

It is an arithmetic number, because the mean of its divisors is an integer number (109508904921).

Almost surely, 2^620547213233 is an apocalyptic number.

It is an amenable number.

620547213233 is a deficient number, since it is larger than the sum of its proper divisors (36506216293).

620547213233 is an frugal number, since it uses more digits than its factorization.

620547213233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382131 (or 191074 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 38.

Adding to 620547213233 its reverse (332312745026), we get a palindrome (952859958259).

The spelling of 620547213233 in words is "six hundred twenty billion, five hundred forty-seven million, two hundred thirteen thousand, two hundred thirty-three".