1545223661463 has 8 divisors (see below), whose sum is σ = 2060304539776. Its totient is φ = 1030145945400.

The previous prime is 1545223661353. The next prime is 1545223661491. The reversal of 1545223661463 is 3641663225451.

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

It is not a de Polignac number, because 1545223661463 - 2⁹ = 1545223660951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1545223661263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816048 + ... + 1938138.

It is an arithmetic number, because the mean of its divisors is an integer number (257538067472).

Almost surely, 2^{1545223661463} is an apocalyptic number.

1545223661463 is a deficient number, since it is larger than the sum of its proper divisors (515080878313).

1545223661463 is a wasteful number, since it uses less digits than its factorization.

1545223661463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581125.

The product of its digits is 3110400, while the sum is 48.

The spelling of 1545223661463 in words is "one trillion, five hundred forty-five billion, two hundred twenty-three million, six hundred sixty-one thousand, four hundred sixty-three".