43542764551 has 16 divisors (see below), whose sum is σ = 51174835488. Its totient is φ = 36525312000.

The previous prime is 43542764549. The next prime is 43542764611. The reversal of 43542764551 is 15546724534.

It is a cyclic number.

It is not a de Polignac number, because 43542764551 - 2¹ = 43542764549 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 (43542704551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322651 + ... + 437251.

It is an arithmetic number, because the mean of its divisors is an integer number (3198427218).

Almost surely, 2^43542764551 is an apocalyptic number.

43542764551 is a deficient number, since it is larger than the sum of its proper divisors (7632070937).

43542764551 is a wasteful number, since it uses less digits than its factorization.

43542764551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117282.

The product of its digits is 2016000, while the sum is 46.

The spelling of 43542764551 in words is "forty-three billion, five hundred forty-two million, seven hundred sixty-four thousand, five hundred fifty-one".