12761761077 has 24 divisors (see below), whose sum is σ = 19970530944. Its totient is φ = 7806353184.

The previous prime is 12761761069. The next prime is 12761761081. The reversal of 12761761077 is 77016716721.

12761761077 is a `hidden beast` number, since 1 + 27 + 6 + 1 + 7 + 610 + 7 + 7 = 666.

It is not a de Polignac number, because 12761761077 - 2³ = 12761761069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12761761007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307033 + ... + 346110.

It is an arithmetic number, because the mean of its divisors is an integer number (832105456).

Almost surely, 2^12761761077 is an apocalyptic number.

It is an amenable number.

12761761077 is a deficient number, since it is larger than the sum of its proper divisors (7208769867).

12761761077 is a wasteful number, since it uses less digits than its factorization.

12761761077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653329 (or 653326 counting only the distinct ones).

The product of its (nonzero) digits is 172872, while the sum is 45.

The spelling of 12761761077 in words is "twelve billion, seven hundred sixty-one million, seven hundred sixty-one thousand, seventy-seven".