42155302454 has 8 divisors (see below), whose sum is σ = 63237318840. Its totient is φ = 21076196176.

The previous prime is 42155302447. The next prime is 42155302493. The reversal of 42155302454 is 45420355124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690944 + ... + 749475.

It is an arithmetic number, because the mean of its divisors is an integer number (7904664855).

Almost surely, 2^42155302454 is an apocalyptic number.

42155302454 is a deficient number, since it is larger than the sum of its proper divisors (21082016386).

42155302454 is a wasteful number, since it uses less digits than its factorization.

42155302454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455054.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 42155302454 its reverse (45420355124), we get a palindrome (87575657578).

The spelling of 42155302454 in words is "forty-two billion, one hundred fifty-five million, three hundred two thousand, four hundred fifty-four".