776670884401 has 4 divisors (see below), whose sum is σ = 776674980900. Its totient is φ = 776666787904.

The previous prime is 776670884399. The next prime is 776670884467. The reversal of 776670884401 is 104488076677.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 328788706801 + 447882177600 = 573401^2 + 669240^2 .

It is a cyclic number.

It is not a de Polignac number, because 776670884401 - 2¹ = 776670884399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (776670884471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1749316 + ... + 2147893.

It is an arithmetic number, because the mean of its divisors is an integer number (194168745225).

Almost surely, 2^776670884401 is an apocalyptic number.

It is an amenable number.

776670884401 is a deficient number, since it is larger than the sum of its proper divisors (4096499).

776670884401 is a wasteful number, since it uses less digits than its factorization.

776670884401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096498.

The product of its (nonzero) digits is 12644352, while the sum is 58.

The spelling of 776670884401 in words is "seven hundred seventy-six billion, six hundred seventy million, eight hundred eighty-four thousand, four hundred one".