42811180402 has 4 divisors (see below), whose sum is σ = 64216770606. Its totient is φ = 21405590200.

The previous prime is 42811180381. The next prime is 42811180403. The reversal of 42811180402 is 20408111824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40912748361 + 1898432041 = 202269^2 + 43571^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42811180403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10702795099 + ... + 10702795102.

Almost surely, 2^42811180402 is an apocalyptic number.

42811180402 is a deficient number, since it is larger than the sum of its proper divisors (21405590204).

42811180402 is a wasteful number, since it uses less digits than its factorization.

42811180402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21405590203.

The product of its (nonzero) digits is 4096, while the sum is 31.

The spelling of 42811180402 in words is "forty-two billion, eight hundred eleven million, one hundred eighty thousand, four hundred two".