8748778487 has 2 divisors, whose sum is σ = 8748778488. Its totient is φ = 8748778486.

The previous prime is 8748778477. The next prime is 8748778541. The reversal of 8748778487 is 7848778478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8748778487 - 2²² = 8744584183 is a prime.

It is a super-2 number, since 2×8748778487² (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 (8748778457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4374389243 + 4374389244.

It is an arithmetic number, because the mean of its divisors is an integer number (4374389244).

Almost surely, 2^8748778487 is an apocalyptic number.

8748778487 is a deficient number, since it is larger than the sum of its proper divisors (1).

8748778487 is an equidigital number, since it uses as much as digits as its factorization.

8748778487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157351936, while the sum is 68.

The square root of 8748778487 is about 93534.9051798311. The cubic root of 8748778487 is about 2060.5467558500.

Subtracting from 8748778487 its reverse (7848778478), we obtain a palindrome (900000009).

The spelling of 8748778487 in words is "eight billion, seven hundred forty-eight million, seven hundred seventy-eight thousand, four hundred eighty-seven".