8001400069 has 4 divisors (see below), whose sum is σ = 8616892396. Its totient is φ = 7385907744.

The previous prime is 8001400021. The next prime is 8001400079. The reversal of 8001400069 is 9600041008.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5078700225 + 2922699844 = 71265^2 + 54062^2 .

It is a cyclic number.

It is not a de Polignac number, because 8001400069 - 2⁷ = 8001399941 is a prime.

It is a super-2 number, since 2×8001400069² (a number of 21 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 (8001400009) 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 3 ways as a sum of consecutive naturals, for example, 307746144 + ... + 307746169.

It is an arithmetic number, because the mean of its divisors is an integer number (2154223099).

Almost surely, 2^8001400069 is an apocalyptic number.

It is an amenable number.

8001400069 is a deficient number, since it is larger than the sum of its proper divisors (615492327).

8001400069 is a wasteful number, since it uses less digits than its factorization.

8001400069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615492326.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 8001400069 is about 89450.5453812329. The cubic root of 8001400069 is about 2000.1166656111.

The spelling of 8001400069 in words is "eight billion, one million, four hundred thousand, sixty-nine".