531763689961 has 16 divisors (see below), whose sum is σ = 620724750336. Its totient is φ = 446053347216.

The previous prime is 531763689883. The next prime is 531763689983. The reversal of 531763689961 is 169986367135.

It is a cyclic number.

It is not a de Polignac number, because 531763689961 - 2²⁷ = 531629472233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531763689893 and 531763689902.

It is not an unprimeable number, because it can be changed into a prime (531763684961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3299130 + ... + 3456556.

It is an arithmetic number, because the mean of its divisors is an integer number (38795296896).

Almost surely, 2^531763689961 is an apocalyptic number.

It is an amenable number.

531763689961 is a deficient number, since it is larger than the sum of its proper divisors (88961060375).

531763689961 is a wasteful number, since it uses less digits than its factorization.

531763689961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167748.

The product of its digits is 44089920, while the sum is 64.

The spelling of 531763689961 in words is "five hundred thirty-one billion, seven hundred sixty-three million, six hundred eighty-nine thousand, nine hundred sixty-one".