43157203135432 has 8 divisors (see below), whose sum is σ = 80919755878950. Its totient is φ = 21578601567712.

The previous prime is 43157203135421. The next prime is 43157203135457. The reversal of 43157203135432 is 23453130275134.

It can be written as a sum of positive squares in only one way, i.e., 38394307186596 + 4762895948836 = 6196314^2 + 2182406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2697325195957 + ... + 2697325195972.

Almost surely, 2^{43157203135432} is an apocalyptic number.

It is an amenable number.

43157203135432 is a deficient number, since it is larger than the sum of its proper divisors (37762552743518).

43157203135432 is a wasteful number, since it uses less digits than its factorization.

43157203135432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5394650391935 (or 5394650391931 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 43.

The spelling of 43157203135432 in words is "forty-three trillion, one hundred fifty-seven billion, two hundred three million, one hundred thirty-five thousand, four hundred thirty-two".