7800056311 has 16 divisors (see below), whose sum is σ = 8153006400. Its totient is φ = 7452917248.

The previous prime is 7800056291. The next prime is 7800056347. The reversal of 7800056311 is 1136500087.

It is a cyclic number.

It is not a de Polignac number, because 7800056311 - 2¹³ = 7800048119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7800056611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2747985 + ... + 2750821.

It is an arithmetic number, because the mean of its divisors is an integer number (509562900).

Almost surely, 2^7800056311 is an apocalyptic number.

7800056311 is a deficient number, since it is larger than the sum of its proper divisors (352950089).

7800056311 is a wasteful number, since it uses less digits than its factorization.

7800056311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 7800056311 is about 88317.9274609634. The cubic root of 7800056311 is about 1983.1972551288.

Adding to 7800056311 its reverse (1136500087), we get a palindrome (8936556398).

The spelling of 7800056311 in words is "seven billion, eight hundred million, fifty-six thousand, three hundred eleven".