520747677777 has 16 divisors (see below), whose sum is σ = 701169439680. Its totient is φ = 343751611392.

The previous prime is 520747677761. The next prime is 520747677811. The reversal of 520747677777 is 777776747025.

It is not a de Polignac number, because 520747677777 - 2⁴ = 520747677761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520747677077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419163 + ... + 1103264.

It is an arithmetic number, because the mean of its divisors is an integer number (43823089980).

Almost surely, 2^520747677777 is an apocalyptic number.

It is an amenable number.

520747677777 is a deficient number, since it is larger than the sum of its proper divisors (180421761903).

520747677777 is a wasteful number, since it uses less digits than its factorization.

520747677777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523552.

The product of its (nonzero) digits is 197650320, while the sum is 66.

The spelling of 520747677777 in words is "five hundred twenty billion, seven hundred forty-seven million, six hundred seventy-seven thousand, seven hundred seventy-seven".