523145432542 has 16 divisors (see below), whose sum is σ = 798866679600. Its totient is φ = 256865964160.

The previous prime is 523145432449. The next prime is 523145432561. The reversal of 523145432542 is 245234541325.

It is a super-2 number, since 2×523145432542² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 523145432495 and 523145432504.

It is a congruent number.

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, 2244667 + ... + 2466742.

It is an arithmetic number, because the mean of its divisors is an integer number (49929167475).

Almost surely, 2^523145432542 is an apocalyptic number.

523145432542 is a deficient number, since it is larger than the sum of its proper divisors (275721247058).

523145432542 is a wasteful number, since it uses less digits than its factorization.

523145432542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4712411.

The product of its digits is 576000, while the sum is 40.

Adding to 523145432542 its reverse (245234541325), we get a palindrome (768379973867).

The spelling of 523145432542 in words is "five hundred twenty-three billion, one hundred forty-five million, four hundred thirty-two thousand, five hundred forty-two".