531105790000 has 50 divisors (see below), whose sum is σ = 1285860252380. Its totient is φ = 212442312000.

The previous prime is 531105789997. The next prime is 531105790027. The reversal of 531105790000 is 97501135.

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26545290 + ... + 26565289.

Almost surely, 2^531105790000 is an apocalyptic number.

531105790000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

531105790000 is an abundant number, since it is smaller than the sum of its proper divisors (754754462380).

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

531105790000 is an equidigital number, since it uses as much as digits as its factorization.

531105790000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53110607 (or 53110586 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 31.

The spelling of 531105790000 in words is "five hundred thirty-one billion, one hundred five million, seven hundred ninety thousand".