18770776713 has 48 divisors (see below), whose sum is σ = 29941912000. Its totient is φ = 11258497152.

The previous prime is 18770776699. The next prime is 18770776757. The reversal of 18770776713 is 31767707781.

It is a happy number.

It is not a de Polignac number, because 18770776713 - 2⁵ = 18770776681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18770776713.

It is not an unprimeable number, because it can be changed into a prime (18770775713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2506731 + ... + 2514207.

Almost surely, 2^18770776713 is an apocalyptic number.

18770776713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18770776713 is a deficient number, since it is larger than the sum of its proper divisors (11171135287).

18770776713 is a wasteful number, since it uses less digits than its factorization.

18770776713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038 (or 8035 counting only the distinct ones).

The product of its (nonzero) digits is 2420208, while the sum is 54.

The spelling of 18770776713 in words is "eighteen billion, seven hundred seventy million, seven hundred seventy-six thousand, seven hundred thirteen".