43143034551 has 32 divisors (see below), whose sum is σ = 61453351680. Its totient is φ = 26918874720.

The previous prime is 43143034547. The next prime is 43143034559. The reversal of 43143034551 is 15543034134.

It is not a de Polignac number, because 43143034551 - 2² = 43143034547 is a prime.

It is a super-2 number, since 2×43143034551² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43143034559) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 1695261 + ... + 1720521.

It is an arithmetic number, because the mean of its divisors is an integer number (1920417240).

Almost surely, 2^43143034551 is an apocalyptic number.

43143034551 is a deficient number, since it is larger than the sum of its proper divisors (18310317129).

43143034551 is an equidigital number, since it uses as much as digits as its factorization.

43143034551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25404 (or 25366 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 43143034551 its reverse (15543034134), we get a palindrome (58686068685).

The spelling of 43143034551 in words is "forty-three billion, one hundred forty-three million, thirty-four thousand, five hundred fifty-one".