531118636136452 has 48 divisors (see below), whose sum is σ = 1158428184040960. Its totient is φ = 207453210486912.

The previous prime is 531118636136411. The next prime is 531118636136461. The reversal of 531118636136452 is 254631636811135.

It is a junction number, because it is equal to n+sod(n) for n = 531118636136393 and 531118636136402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9234889803 + ... + 9234947314.

Almost surely, 2^{531118636136452} is an apocalyptic number.

531118636136452 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

531118636136452 is an abundant number, since it is smaller than the sum of its proper divisors (627309547904508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531118636136452 is a wasteful number, since it uses less digits than its factorization.

531118636136452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18469837220 (or 18469837218 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 55.

The spelling of 531118636136452 in words is "five hundred thirty-one trillion, one hundred eighteen billion, six hundred thirty-six million, one hundred thirty-six thousand, four hundred fifty-two".