540043266251 has 2 divisors, whose sum is σ = 540043266252. Its totient is φ = 540043266250.

The previous prime is 540043266247. The next prime is 540043266281. The reversal of 540043266251 is 152662340045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540043266251 - 2² = 540043266247 is a prime.

It is not a weakly prime, because it can be changed into another prime (540043266281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270021633125 + 270021633126.

It is an arithmetic number, because the mean of its divisors is an integer number (270021633126).

Almost surely, 2^540043266251 is an apocalyptic number.

540043266251 is a deficient number, since it is larger than the sum of its proper divisors (1).

540043266251 is an equidigital number, since it uses as much as digits as its factorization.

540043266251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 540043266251 in words is "five hundred forty billion, forty-three million, two hundred sixty-six thousand, two hundred fifty-one".