78364002911 has 4 divisors (see below), whose sum is σ = 78981042432. Its totient is φ = 77746963392.

The previous prime is 78364002889. The next prime is 78364002923. The reversal of 78364002911 is 11920046387.

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

It is a cyclic number.

It is not a de Polignac number, because 78364002911 - 2¹⁰ = 78364001887 is a prime.

It is a super-2 number, since 2×78364002911² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78364002991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308519570 + ... + 308519823.

It is an arithmetic number, because the mean of its divisors is an integer number (19745260608).

Almost surely, 2^78364002911 is an apocalyptic number.

78364002911 is a deficient number, since it is larger than the sum of its proper divisors (617039521).

78364002911 is a wasteful number, since it uses less digits than its factorization.

78364002911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617039520.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 78364002911 in words is "seventy-eight billion, three hundred sixty-four million, two thousand, nine hundred eleven".