531104445704340 has 144 divisors (see below), whose sum is σ = 1618926314141136. Its totient is φ = 140933401804800.

The previous prime is 531104445704317. The next prime is 531104445704377. The reversal of 531104445704340 is 43407544401135.

531104445704340 is a `hidden beast` number, since 5 + 3 + 1 + 1 + 0 + 4 + 44 + 570 + 4 + 34 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 129226967782416 + 401877477921924 = 11367804^2 + 20046882^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52670964 + ... + 61938996.

Almost surely, 2^{531104445704340} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531104445704340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809463157070568).

531104445704340 is an abundant number, since it is smaller than the sum of its proper divisors (1087821868436796).

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

531104445704340 is a wasteful number, since it uses less digits than its factorization.

531104445704340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9269610 (or 9269605 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 531104445704340 in words is "five hundred thirty-one trillion, one hundred four billion, four hundred forty-five million, seven hundred four thousand, three hundred forty".