8778240001 has 2 divisors, whose sum is σ = 8778240002. Its totient is φ = 8778240000.

The previous prime is 8778239971. The next prime is 8778240017. The reversal of 8778240001 is 1000428778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7627402225 + 1150837776 = 87335^2 + 33924^2 .

It is a cyclic number.

It is not a de Polignac number, because 8778240001 - 2²⁵ = 8744685569 is a prime.

It is not a weakly prime, because it can be changed into another prime (8778240061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4389120000 + 4389120001.

It is an arithmetic number, because the mean of its divisors is an integer number (4389120001).

Almost surely, 2^8778240001 is an apocalyptic number.

It is an amenable number.

8778240001 is a deficient number, since it is larger than the sum of its proper divisors (1).

8778240001 is an equidigital number, since it uses as much as digits as its factorization.

8778240001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 8778240001 is about 93692.2622258637. The cubic root of 8778240001 is about 2062.8571283196.

Adding to 8778240001 its reverse (1000428778), we get a palindrome (9778668779).

The spelling of 8778240001 in words is "eight billion, seven hundred seventy-eight million, two hundred forty thousand, one".