43091197242 has 16 divisors (see below), whose sum is σ = 86463122592. Its totient is φ = 14316944400.

The previous prime is 43091197213. The next prime is 43091197249. The reversal of 43091197242 is 24279119034.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 43091197194 and 43091197203.

It is not an unprimeable number, because it can be changed into a prime (43091197249) 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 7 ways as a sum of consecutive naturals, for example, 11695009 + ... + 11698692.

It is an arithmetic number, because the mean of its divisors is an integer number (5403945162).

Almost surely, 2^43091197242 is an apocalyptic number.

43091197242 is an abundant number, since it is smaller than the sum of its proper divisors (43371925350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43091197242 is a wasteful number, since it uses less digits than its factorization.

43091197242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23394013.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 43091197242 in words is "forty-three billion, ninety-one million, one hundred ninety-seven thousand, two hundred forty-two".