450123136551542 has 16 divisors (see below), whose sum is σ = 707367317148672. Its totient is φ = 214550748763560.

The previous prime is 450123136551503. The next prime is 450123136551547. The reversal of 450123136551542 is 245155631321054.

It is a super-2 number, since 2×450123136551542² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450123136551547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54179477858 + ... + 54179486165.

It is an arithmetic number, because the mean of its divisors is an integer number (44210457321792).

Almost surely, 2^{450123136551542} is an apocalyptic number.

450123136551542 is a deficient number, since it is larger than the sum of its proper divisors (257244180597130).

450123136551542 is a wasteful number, since it uses less digits than its factorization.

450123136551542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108358964123.

The product of its (nonzero) digits is 2160000, while the sum is 47.

Adding to 450123136551542 its reverse (245155631321054), we get a palindrome (695278767872596).

The spelling of 450123136551542 in words is "four hundred fifty trillion, one hundred twenty-three billion, one hundred thirty-six million, five hundred fifty-one thousand, five hundred forty-two".