6777706420413 has 128 divisors (see below), whose sum is σ = 10850402304000. Its totient is φ = 4172744056320.

The previous prime is 6777706420391. The next prime is 6777706420453. The reversal of 6777706420413 is 3140246077776.

It is not a de Polignac number, because 6777706420413 - 2⁸ = 6777706420157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6777706420413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6777706420453) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 725426820 + ... + 725436162.

It is an arithmetic number, because the mean of its divisors is an integer number (84768768000).

Almost surely, 2^{6777706420413} is an apocalyptic number.

It is an amenable number.

6777706420413 is a deficient number, since it is larger than the sum of its proper divisors (4072695883587).

6777706420413 is a wasteful number, since it uses less digits than its factorization.

6777706420413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864 (or 9858 counting only the distinct ones).

The product of its (nonzero) digits is 8297856, while the sum is 54.

The spelling of 6777706420413 in words is "six trillion, seven hundred seventy-seven billion, seven hundred six million, four hundred twenty thousand, four hundred thirteen".