620204242372345 has 8 divisors (see below), whose sum is σ = 744395839325064. Its totient is φ = 496062894912384.

The previous prime is 620204242372259. The next prime is 620204242372357. The reversal of 620204242372345 is 543273242402026.

It can be written as a sum of positive squares in 4 ways, for example, as 7049975522041 + 613154266850304 = 2655179^2 + 24761952^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620204242372345 - 2¹⁹ = 620204241848057 is a prime.

It is a super-2 number, since 2×620204242372345² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620204242372295 and 620204242372304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12562346034 + ... + 12562395403.

It is an arithmetic number, because the mean of its divisors is an integer number (93049479915633).

Almost surely, 2^{620204242372345} is an apocalyptic number.

It is an amenable number.

620204242372345 is a deficient number, since it is larger than the sum of its proper divisors (124191596952719).

620204242372345 is a wasteful number, since it uses less digits than its factorization.

620204242372345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25124746379.

The product of its (nonzero) digits is 3870720, while the sum is 46.

The spelling of 620204242372345 in words is "six hundred twenty trillion, two hundred four billion, two hundred forty-two million, three hundred seventy-two thousand, three hundred forty-five".