1245432222544 has 10 divisors (see below), whose sum is σ = 2413024931210. Its totient is φ = 622716111264.

The previous prime is 1245432222443. The next prime is 1245432222589. The reversal of 1245432222544 is 4452222345421.

It can be written as a sum of positive squares in only one way, i.e., 1186548346944 + 58883875600 = 1089288^2 + 242660^2 .

It is a super-2 number, since 2×1245432222544² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1245432222497 and 1245432222506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38919756939 + ... + 38919756970.

It is an arithmetic number, because the mean of its divisors is an integer number (241302493121).

Almost surely, 2^{1245432222544} is an apocalyptic number.

It is an amenable number.

1245432222544 is a deficient number, since it is larger than the sum of its proper divisors (1167592708666).

1245432222544 is an equidigital number, since it uses as much as digits as its factorization.

1245432222544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77839513917 (or 77839513911 counting only the distinct ones).

The product of its digits is 614400, while the sum is 40.

Adding to 1245432222544 its reverse (4452222345421), we get a palindrome (5697654567965).

The spelling of 1245432222544 in words is "one trillion, two hundred forty-five billion, four hundred thirty-two million, two hundred twenty-two thousand, five hundred forty-four".