766968543 has 18 divisors (see below), whose sum is σ = 1217713952. Its totient is φ = 464828760.

The previous prime is 766968533. The next prime is 766968547. The reversal of 766968543 is 345869667.

766968543 is a `hidden beast` number, since 7 + 6 + 6 + 96 + 8 + 543 = 666.

It is not a de Polignac number, because 766968543 - 2⁸ = 766968287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 766968543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766968547) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 351055 + ... + 353232.

Almost surely, 2^766968543 is an apocalyptic number.

766968543 is a deficient number, since it is larger than the sum of its proper divisors (450745409).

766968543 is a wasteful number, since it uses less digits than its factorization.

766968543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704315 (or 704301 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 766968543 is about 27694.1969192103. The cubic root of 766968543 is about 915.3612369244.

The spelling of 766968543 in words is "seven hundred sixty-six million, nine hundred sixty-eight thousand, five hundred forty-three".