43512213344551 has 8 divisors (see below), whose sum is σ = 49888141714944. Its totient is φ = 37176259447320.

The previous prime is 43512213344549. The next prime is 43512213344557. The reversal of 43512213344551 is 15544331221534.

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

It is not a de Polignac number, because 43512213344551 - 2¹ = 43512213344549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43512213344498 and 43512213344507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43512213344557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9993615955 + ... + 9993620308.

It is an arithmetic number, because the mean of its divisors is an integer number (6236017714368).

Almost surely, 2^{43512213344551} is an apocalyptic number.

43512213344551 is a deficient number, since it is larger than the sum of its proper divisors (6375928370393).

43512213344551 is a wasteful number, since it uses less digits than its factorization.

43512213344551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19987236581.

The product of its digits is 864000, while the sum is 43.

The spelling of 43512213344551 in words is "forty-three trillion, five hundred twelve billion, two hundred thirteen million, three hundred forty-four thousand, five hundred fifty-one".