42423531455545 has 8 divisors (see below), whose sum is σ = 52550438964480. Its totient is φ = 32844024352560.

The previous prime is 42423531455533. The next prime is 42423531455587. The reversal of 42423531455545 is 54555413532424.

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

It is not a de Polignac number, because 42423531455545 - 2⁴⁵ = 7239159366713 is a prime.

It is a super-2 number, since 2×42423531455545² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42423531455492 and 42423531455501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136850101315 + ... + 136850101624.

It is an arithmetic number, because the mean of its divisors is an integer number (6568804870560).

Almost surely, 2^{42423531455545} is an apocalyptic number.

It is an amenable number.

42423531455545 is a deficient number, since it is larger than the sum of its proper divisors (10126907508935).

42423531455545 is a wasteful number, since it uses less digits than its factorization.

42423531455545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273700202975.

The product of its digits is 28800000, while the sum is 52.

Adding to 42423531455545 its reverse (54555413532424), we get a palindrome (96978944987969).

The spelling of 42423531455545 in words is "forty-two trillion, four hundred twenty-three billion, five hundred thirty-one million, four hundred fifty-five thousand, five hundred forty-five".