7933870081 has 2 divisors, whose sum is σ = 7933870082. Its totient is φ = 7933870080.

The previous prime is 7933870073. The next prime is 7933870093. The reversal of 7933870081 is 1800783397.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6908269456 + 1025600625 = 83116^2 + 32025^2 .

It is a cyclic number.

It is not a de Polignac number, because 7933870081 - 2³ = 7933870073 is a prime.

It is a super-2 number, since 2×7933870081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7933870001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3966935040 + 3966935041.

It is an arithmetic number, because the mean of its divisors is an integer number (3966935041).

Almost surely, 2^7933870081 is an apocalyptic number.

It is an amenable number.

7933870081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7933870081 is an equidigital number, since it uses as much as digits as its factorization.

7933870081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 7933870081 is about 89072.2744797729. The cubic root of 7933870081 is about 1994.4739186921.

The spelling of 7933870081 in words is "seven billion, nine hundred thirty-three million, eight hundred seventy thousand, eighty-one".