42018040455 has 32 divisors (see below), whose sum is σ = 70729944768. Its totient is φ = 21272140800.

The previous prime is 42018040451. The next prime is 42018040457. The reversal of 42018040455 is 55404081024.

42018040455 = 33681² + 33682² + ... + 33717².

It is a happy number.

It is not a de Polignac number, because 42018040455 - 2² = 42018040451 is a prime.

It is a super-3 number, since 3×42018040455³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42018040451) 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 31 ways as a sum of consecutive naturals, for example, 900516 + ... + 946025.

It is an arithmetic number, because the mean of its divisors is an integer number (2210310774).

Almost surely, 2^42018040455 is an apocalyptic number.

42018040455 is a deficient number, since it is larger than the sum of its proper divisors (28711904313).

42018040455 is a wasteful number, since it uses less digits than its factorization.

42018040455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846627.

The product of its (nonzero) digits is 25600, while the sum is 33.

The spelling of 42018040455 in words is "forty-two billion, eighteen million, forty thousand, four hundred fifty-five".