43455691485 has 64 divisors (see below), whose sum is σ = 79597762560. Its totient is φ = 22483837440.

The previous prime is 43455691481. The next prime is 43455691501. The reversal of 43455691485 is 58419655434.

43455691485 is a `hidden beast` number, since 4 + 3 + 4 + 556 + 9 + 1 + 4 + 85 = 666.

It is not a de Polignac number, because 43455691485 - 2² = 43455691481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43455691481) 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 63 ways as a sum of consecutive naturals, for example, 565012 + ... + 637298.

It is an arithmetic number, because the mean of its divisors is an integer number (1243715040).

Almost surely, 2^43455691485 is an apocalyptic number.

43455691485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43455691485 is a deficient number, since it is larger than the sum of its proper divisors (36142071075).

43455691485 is a wasteful number, since it uses less digits than its factorization.

43455691485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72435 (or 72429 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The spelling of 43455691485 in words is "forty-three billion, four hundred fifty-five million, six hundred ninety-one thousand, four hundred eighty-five".