779520000001 has 4 divisors (see below), whose sum is σ = 779523129172. Its totient is φ = 779516870832.

The previous prime is 779519999989. The next prime is 779520000011. The reversal of 779520000001 is 100000025977.

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 361459476225 + 418060523776 = 601215^2 + 646576^2 .

It is a cyclic number.

It is not a de Polignac number, because 779520000001 - 2¹¹ = 779519997953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (779520000011) 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, 1155210 + ... + 1701043.

It is an arithmetic number, because the mean of its divisors is an integer number (194880782293).

Almost surely, 2^779520000001 is an apocalyptic number.

It is an amenable number.

779520000001 is a deficient number, since it is larger than the sum of its proper divisors (3129171).

779520000001 is a wasteful number, since it uses less digits than its factorization.

779520000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129170.

The product of its (nonzero) digits is 4410, while the sum is 31.

Adding to 779520000001 its reverse (100000025977), we get a palindrome (879520025978).

The spelling of 779520000001 in words is "seven hundred seventy-nine billion, five hundred twenty million, one", and thus it is an aban number.