778904000001 has 48 divisors (see below), whose sum is σ = 1194675168960. Its totient is φ = 487326428160.

The previous prime is 778903999999. The next prime is 778904000003. The reversal of 778904000001 is 100000409877.

It is an interprime number because it is at equal distance from previous prime (778903999999) and next prime (778904000003).

It is not a de Polignac number, because 778904000001 - 2¹ = 778903999999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 778904000001.

It is not an unprimeable number, because it can be changed into a prime (778904000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184966786 + ... + 184970996.

It is an arithmetic number, because the mean of its divisors is an integer number (24889066020).

Almost surely, 2^778904000001 is an apocalyptic number.

It is an amenable number.

778904000001 is a deficient number, since it is larger than the sum of its proper divisors (415771168959).

778904000001 is a wasteful number, since it uses less digits than its factorization.

778904000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7406 (or 7403 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

Adding to 778904000001 its reverse (100000409877), we get a palindrome (878904409878).

The spelling of 778904000001 in words is "seven hundred seventy-eight billion, nine hundred four million, one", and thus it is an aban number.