42240454515 has 96 divisors (see below), whose sum is σ = 85191575040. Its totient is φ = 18962076672.

The previous prime is 42240454483. The next prime is 42240454541. The reversal of 42240454515 is 51545404224.

It is not a de Polignac number, because 42240454515 - 2⁵ = 42240454483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42240454515.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7109416 + ... + 7115354.

It is an arithmetic number, because the mean of its divisors is an integer number (887412240).

Almost surely, 2^42240454515 is an apocalyptic number.

42240454515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42240454515 is an abundant number, since it is smaller than the sum of its proper divisors (42951120525).

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

42240454515 is a wasteful number, since it uses less digits than its factorization.

42240454515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361 (or 6358 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

Adding to 42240454515 its reverse (51545404224), we get a palindrome (93785858739).

The spelling of 42240454515 in words is "forty-two billion, two hundred forty million, four hundred fifty-four thousand, five hundred fifteen".