7875064487 has 2 divisors, whose sum is σ = 7875064488. Its totient is φ = 7875064486.

The previous prime is 7875064459. The next prime is 7875064523. The reversal of 7875064487 is 7844605787.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7875064487 - 2¹⁰ = 7875063463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7875066487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3937532243 + 3937532244.

It is an arithmetic number, because the mean of its divisors is an integer number (3937532244).

Almost surely, 2^7875064487 is an apocalyptic number.

7875064487 is a deficient number, since it is larger than the sum of its proper divisors (1).

7875064487 is an equidigital number, since it uses as much as digits as its factorization.

7875064487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10536960, while the sum is 56.

The square root of 7875064487 is about 88741.5600888332. The cubic root of 7875064487 is about 1989.5340345675.

The spelling of 7875064487 in words is "seven billion, eight hundred seventy-five million, sixty-four thousand, four hundred eighty-seven".