766740375117 has 40 divisors (see below), whose sum is σ = 1176601218936. Its totient is φ = 497232027648.

The previous prime is 766740375101. The next prime is 766740375131. The reversal of 766740375117 is 711573047667.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 665772770601 + 100967604516 = 815949^2 + 317754^2 .

It is not a de Polignac number, because 766740375117 - 2⁴ = 766740375101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766740375197) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14337933 + ... + 14391309.

Almost surely, 2^766740375117 is an apocalyptic number.

It is an amenable number.

766740375117 is a deficient number, since it is larger than the sum of its proper divisors (409860843819).

766740375117 is a wasteful number, since it uses less digits than its factorization.

766740375117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58219 (or 58210 counting only the distinct ones).

The product of its (nonzero) digits is 5186160, while the sum is 54.

The spelling of 766740375117 in words is "seven hundred sixty-six billion, seven hundred forty million, three hundred seventy-five thousand, one hundred seventeen".