10243453243545 has 24 divisors (see below), whose sum is σ = 17755507164096. Its totient is φ = 5463117152928.

The previous prime is 10243453243511. The next prime is 10243453243547. The reversal of 10243453243545 is 54534235434201.

10243453243545 is a `hidden beast` number, since 1 + 0 + 2 + 4 + 34 + 5 + 32 + 43 + 545 = 666.

It is not a de Polignac number, because 10243453243545 - 2⁹ = 10243453243033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 10243453243545.

It is not an unprimeable number, because it can be changed into a prime (10243453243547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3268324 + ... + 5582906.

It is an arithmetic number, because the mean of its divisors is an integer number (739812798504).

Almost surely, 2^{10243453243545} is an apocalyptic number.

10243453243545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10243453243545 is a deficient number, since it is larger than the sum of its proper divisors (7512053920551).

10243453243545 is a wasteful number, since it uses less digits than its factorization.

10243453243545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412941 (or 2412938 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 45.

Adding to 10243453243545 its reverse (54534235434201), we get a palindrome (64777688677746).

The spelling of 10243453243545 in words is "ten trillion, two hundred forty-three billion, four hundred fifty-three million, two hundred forty-three thousand, five hundred forty-five".