42240310451 has 4 divisors (see below), whose sum is σ = 44076845712. Its totient is φ = 40403775192.

The previous prime is 42240310439. The next prime is 42240310477. The reversal of 42240310451 is 15401304224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42240310451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42240310451.

It is not an unprimeable number, because it can be changed into a prime (42240318451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918267596 + ... + 918267641.

It is an arithmetic number, because the mean of its divisors is an integer number (11019211428).

Almost surely, 2^42240310451 is an apocalyptic number.

42240310451 is a deficient number, since it is larger than the sum of its proper divisors (1836535261).

42240310451 is a wasteful number, since it uses less digits than its factorization.

42240310451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836535260.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 42240310451 its reverse (15401304224), we get a palindrome (57641614675).

The spelling of 42240310451 in words is "forty-two billion, two hundred forty million, three hundred ten thousand, four hundred fifty-one".