42144356354 has 4 divisors (see below), whose sum is σ = 63216534534. Its totient is φ = 21072178176.

The previous prime is 42144356329. The next prime is 42144356357. The reversal of 42144356354 is 45365344124.

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., 41157454129 + 986902225 = 202873^2 + 31415^2 .

It is a super-2 number, since 2×42144356354² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42144356357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10536089087 + ... + 10536089090.

Almost surely, 2^42144356354 is an apocalyptic number.

42144356354 is a deficient number, since it is larger than the sum of its proper divisors (21072178180).

42144356354 is a wasteful number, since it uses less digits than its factorization.

42144356354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21072178179.

The product of its digits is 691200, while the sum is 41.

The spelling of 42144356354 in words is "forty-two billion, one hundred forty-four million, three hundred fifty-six thousand, three hundred fifty-four".