531790953856 has 16 divisors (see below), whose sum is σ = 1059427291140. Its totient is φ = 265895476864.

The previous prime is 531790953839. The next prime is 531790953857. The reversal of 531790953856 is 658359097135.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 531790953794 and 531790953803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531790953857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077308286 + ... + 2077308541.

Almost surely, 2^531790953856 is an apocalyptic number.

It is an amenable number.

531790953856 is a deficient number, since it is larger than the sum of its proper divisors (527636337284).

531790953856 is an equidigital number, since it uses as much as digits as its factorization.

531790953856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154616841 (or 4154616829 counting only the distinct ones).

The product of its (nonzero) digits is 30618000, while the sum is 61.

The spelling of 531790953856 in words is "five hundred thirty-one billion, seven hundred ninety million, nine hundred fifty-three thousand, eight hundred fifty-six".