540262343381 has 2 divisors, whose sum is σ = 540262343382. Its totient is φ = 540262343380.

The previous prime is 540262343359. The next prime is 540262343417. The reversal of 540262343381 is 183343262045.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493850535025 + 46411808356 = 702745^2 + 215434^2 .

It is a cyclic number.

It is not a de Polignac number, because 540262343381 - 2⁶ = 540262343317 is a prime.

It is a super-2 number, since 2×540262343381² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540262343311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270131171690 + 270131171691.

It is an arithmetic number, because the mean of its divisors is an integer number (270131171691).

Almost surely, 2^540262343381 is an apocalyptic number.

It is an amenable number.

540262343381 is a deficient number, since it is larger than the sum of its proper divisors (1).

540262343381 is an equidigital number, since it uses as much as digits as its factorization.

540262343381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 540262343381 in words is "five hundred forty billion, two hundred sixty-two million, three hundred forty-three thousand, three hundred eighty-one".