776664554041057 has 16 divisors (see below), whose sum is σ = 874628752034304. Its totient is φ = 683261485200000.

The previous prime is 776664554041007. The next prime is 776664554041063. The reversal of 776664554041057 is 750140455466677.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 776664554041057 - 2²⁷ = 776664419823329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 776664554040983 and 776664554041001.

It is not an unprimeable number, because it can be changed into a prime (776664554041007) 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, 24132694 + ... + 46213807.

It is an arithmetic number, because the mean of its divisors is an integer number (54664297002144).

Almost surely, 2^{776664554041057} is an apocalyptic number.

It is an amenable number.

776664554041057 is a deficient number, since it is larger than the sum of its proper divisors (97964197993247).

776664554041057 is a wasteful number, since it uses less digits than its factorization.

776664554041057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70378920.

The product of its (nonzero) digits is 592704000, while the sum is 67.

The spelling of 776664554041057 in words is "seven hundred seventy-six trillion, six hundred sixty-four billion, five hundred fifty-four million, forty-one thousand, fifty-seven".