766540262153 has 2 divisors, whose sum is σ = 766540262154. Its totient is φ = 766540262152.

The previous prime is 766540262119. The next prime is 766540262177. The reversal of 766540262153 is 351262045667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 477001566409 + 289538695744 = 690653^2 + 538088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766540262153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 766540262098 and 766540262107.

It is not a weakly prime, because it can be changed into another prime (766540261153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383270131076 + 383270131077.

It is an arithmetic number, because the mean of its divisors is an integer number (383270131077).

Almost surely, 2^766540262153 is an apocalyptic number.

It is an amenable number.

766540262153 is a deficient number, since it is larger than the sum of its proper divisors (1).

766540262153 is an equidigital number, since it uses as much as digits as its factorization.

766540262153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 766540262153 in words is "seven hundred sixty-six billion, five hundred forty million, two hundred sixty-two thousand, one hundred fifty-three".