540985893157 has 2 divisors, whose sum is σ = 540985893158. Its totient is φ = 540985893156.

The previous prime is 540985893127. The next prime is 540985893163. The reversal of 540985893157 is 751398589045.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527473923076 + 13511970081 = 726274^2 + 116241^2 .

It is a cyclic number.

It is not a de Polignac number, because 540985893157 - 2⁷ = 540985893029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540985893127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270492946578 + 270492946579.

It is an arithmetic number, because the mean of its divisors is an integer number (270492946579).

Almost surely, 2^540985893157 is an apocalyptic number.

It is an amenable number.

540985893157 is a deficient number, since it is larger than the sum of its proper divisors (1).

540985893157 is an equidigital number, since it uses as much as digits as its factorization.

540985893157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432000, while the sum is 64.

The spelling of 540985893157 in words is "five hundred forty billion, nine hundred eighty-five million, eight hundred ninety-three thousand, one hundred fifty-seven".