42152043490 has 16 divisors (see below), whose sum is σ = 80336836152. Its totient is φ = 15869004544.

The previous prime is 42152043449. The next prime is 42152043491. The reversal of 42152043490 is 9434025124.

It can be written as a sum of positive squares in 4 ways, for example, as 25259062761 + 16892980729 = 158931^2 + 129973^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (42152043491) 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 7 ways as a sum of consecutive naturals, for example, 123976429 + ... + 123976768.

Almost surely, 2^42152043490 is an apocalyptic number.

42152043490 is a deficient number, since it is larger than the sum of its proper divisors (38184792662).

42152043490 is a wasteful number, since it uses less digits than its factorization.

42152043490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247953221.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 42152043490 in words is "forty-two billion, one hundred fifty-two million, forty-three thousand, four hundred ninety".