625364523216442 has 8 divisors (see below), whose sum is σ = 938052001574676. Its totient is φ = 312680522691552.

The previous prime is 625364523216401. The next prime is 625364523216443. The reversal of 625364523216442 is 244612325463526.

It can be written as a sum of positive squares in 2 ways, for example, as 614772238749201 + 10592284467241 = 24794601^2 + 3254579^2 .

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

It is not an unprimeable number, because it can be changed into a prime (625364523216443) 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, 869008753 + ... + 869728084.

Almost surely, 2^{625364523216442} is an apocalyptic number.

625364523216442 is a deficient number, since it is larger than the sum of its proper divisors (312687478358234).

625364523216442 is a wasteful number, since it uses less digits than its factorization.

625364523216442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738916672.

The product of its digits is 49766400, while the sum is 55.

Adding to 625364523216442 its reverse (244612325463526), we get a palindrome (869976848679968).

The spelling of 625364523216442 in words is "six hundred twenty-five trillion, three hundred sixty-four billion, five hundred twenty-three million, two hundred sixteen thousand, four hundred forty-two".