43692747481 has 4 divisors (see below), whose sum is σ = 43696066000. Its totient is φ = 43689428964.

The previous prime is 43692747467. The next prime is 43692747493. The reversal of 43692747481 is 18474729634.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43692747481 is a prime.

It is a super-2 number, since 2×43692747481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43692747431) 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 3 ways as a sum of consecutive naturals, for example, 1639431 + ... + 1665868.

It is an arithmetic number, because the mean of its divisors is an integer number (10924016500).

Almost surely, 2^43692747481 is an apocalyptic number.

It is an amenable number.

43692747481 is a deficient number, since it is larger than the sum of its proper divisors (3318519).

43692747481 is a wasteful number, since it uses less digits than its factorization.

43692747481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318518.

The product of its digits is 8128512, while the sum is 55.

The spelling of 43692747481 in words is "forty-three billion, six hundred ninety-two million, seven hundred forty-seven thousand, four hundred eighty-one".