3540402054531 has 48 divisors (see below), whose sum is σ = 5180341770240. Its totient is φ = 2329828479360.

The previous prime is 3540402054487. The next prime is 3540402054571. The reversal of 3540402054531 is 1354502040453.

3540402054531 is a `hidden beast` number, since 3 + 5 + 40 + 40 + 2 + 0 + 545 + 31 = 666.

It is not a de Polignac number, because 3540402054531 - 2⁶ = 3540402054467 is a prime.

It is a super-2 number, since 2×3540402054531² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3540402054571) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252680316 + ... + 252694326.

It is an arithmetic number, because the mean of its divisors is an integer number (107923786880).

Almost surely, 2^{3540402054531} is an apocalyptic number.

3540402054531 is a deficient number, since it is larger than the sum of its proper divisors (1639939715709).

3540402054531 is a wasteful number, since it uses less digits than its factorization.

3540402054531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15296 (or 15293 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 3540402054531 its reverse (1354502040453), we get a palindrome (4894904094984).

The spelling of 3540402054531 in words is "three trillion, five hundred forty billion, four hundred two million, fifty-four thousand, five hundred thirty-one".