43251145155451 has 16 divisors (see below), whose sum is σ = 45626271539200. Its totient is φ = 40946985799200.

The previous prime is 43251145155419. The next prime is 43251145155503. The reversal of 43251145155451 is 15455154115234.

It is a happy number.

43251145155451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 43251145155451 - 2⁵ = 43251145155419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43251145155401) 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 15 ways as a sum of consecutive naturals, for example, 80745615 + ... + 81279496.

It is an arithmetic number, because the mean of its divisors is an integer number (2851641971200).

Almost surely, 2^{43251145155451} is an apocalyptic number.

43251145155451 is a deficient number, since it is larger than the sum of its proper divisors (2375126383749).

43251145155451 is a wasteful number, since it uses less digits than its factorization.

43251145155451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162025330.

The product of its digits is 1200000, while the sum is 46.

The spelling of 43251145155451 in words is "forty-three trillion, two hundred fifty-one billion, one hundred forty-five million, one hundred fifty-five thousand, four hundred fifty-one".