8113781051 has 2 divisors, whose sum is σ = 8113781052. Its totient is φ = 8113781050.

The previous prime is 8113781009. The next prime is 8113781057. The reversal of 8113781051 is 1501873118.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8113781051 - 2¹⁴ = 8113764667 is a prime.

It is not a weakly prime, because it can be changed into another prime (8113781057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4056890525 + 4056890526.

It is an arithmetic number, because the mean of its divisors is an integer number (4056890526).

Almost surely, 2^8113781051 is an apocalyptic number.

8113781051 is a deficient number, since it is larger than the sum of its proper divisors (1).

8113781051 is an equidigital number, since it uses as much as digits as its factorization.

8113781051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 35.

The square root of 8113781051 is about 90076.5288574110. The cubic root of 8113781051 is about 2009.4371542703.

The spelling of 8113781051 in words is "eight billion, one hundred thirteen million, seven hundred eighty-one thousand, fifty-one".