531041045535440 has 80 divisors (see below), whose sum is σ = 1354698823118976. Its totient is φ = 191989615987200.

The previous prime is 531041045535421. The next prime is 531041045535599. The reversal of 531041045535440 is 44535540140135.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 531041045535391 and 531041045535400.

It is a congruent number.

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, 1743939476 + ... + 1744243955.

Almost surely, 2^{531041045535440} is an apocalyptic number.

It is an amenable number.

531041045535440 is an abundant number, since it is smaller than the sum of its proper divisors (823657777583536).

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

531041045535440 is a wasteful number, since it uses less digits than its factorization.

531041045535440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488183628 (or 3488183622 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 531041045535440 its reverse (44535540140135), we get a palindrome (575576585675575).

The spelling of 531041045535440 in words is "five hundred thirty-one trillion, forty-one billion, forty-five million, five hundred thirty-five thousand, four hundred forty".