7840572997 has 2 divisors, whose sum is σ = 7840572998. Its totient is φ = 7840572996.

The previous prime is 7840572991. The next prime is 7840573007. The reversal of 7840572997 is 7992750487.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7286158881 + 554414116 = 85359^2 + 23546^2 .

It is a cyclic number.

It is not a de Polignac number, because 7840572997 - 2³¹ = 5693089349 is a prime.

It is a super-2 number, since 2×7840572997² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7840572991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3920286498 + 3920286499.

It is an arithmetic number, because the mean of its divisors is an integer number (3920286499).

Almost surely, 2^7840572997 is an apocalyptic number.

It is an amenable number.

7840572997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7840572997 is an equidigital number, since it uses as much as digits as its factorization.

7840572997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The square root of 7840572997 is about 88547.0100963324. The cubic root of 7840572997 is about 1986.6251727961.

The spelling of 7840572997 in words is "seven billion, eight hundred forty million, five hundred seventy-two thousand, nine hundred ninety-seven".