618047461453 has 4 divisors (see below), whose sum is σ = 618141381948. Its totient is φ = 617953540960.

The previous prime is 618047461397. The next prime is 618047461511. The reversal of 618047461453 is 354164740816.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 397521423049 + 220526038404 = 630493^2 + 469602^2 .

It is a cyclic number.

It is not a de Polignac number, because 618047461453 - 2³³ = 609457526861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 618047461397 and 618047461406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618044461453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46950376 + ... + 46963537.

It is an arithmetic number, because the mean of its divisors is an integer number (154535345487).

Almost surely, 2^618047461453 is an apocalyptic number.

It is an amenable number.

618047461453 is a deficient number, since it is larger than the sum of its proper divisors (93920495).

618047461453 is an equidigital number, since it uses as much as digits as its factorization.

618047461453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93920494.

The product of its (nonzero) digits is 1935360, while the sum is 49.

It can be divided in two parts, 61804 and 7461453, that added together give a palindrome (7523257).

The spelling of 618047461453 in words is "six hundred eighteen billion, forty-seven million, four hundred sixty-one thousand, four hundred fifty-three".