540652531651 has 2 divisors, whose sum is σ = 540652531652. Its totient is φ = 540652531650.

The previous prime is 540652531637. The next prime is 540652531667. The reversal of 540652531651 is 156135256045.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540652531651 - 2¹³ = 540652523459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 540652531598 and 540652531607.

It is not a weakly prime, because it can be changed into another prime (540652531691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270326265825 + 270326265826.

It is an arithmetic number, because the mean of its divisors is an integer number (270326265826).

Almost surely, 2^540652531651 is an apocalyptic number.

540652531651 is a deficient number, since it is larger than the sum of its proper divisors (1).

540652531651 is an equidigital number, since it uses as much as digits as its factorization.

540652531651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540000, while the sum is 43.

Adding to 540652531651 its reverse (156135256045), we get a palindrome (696787787696).

The spelling of 540652531651 in words is "five hundred forty billion, six hundred fifty-two million, five hundred thirty-one thousand, six hundred fifty-one".