5260378687 has 4 divisors (see below), whose sum is σ = 5268149496. Its totient is φ = 5252607880.

The previous prime is 5260378661. The next prime is 5260378693. The reversal of 5260378687 is 7868730625.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5260378687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5260378637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3884389 + ... + 3885742.

It is an arithmetic number, because the mean of its divisors is an integer number (1317037374).

Almost surely, 2^5260378687 is an apocalyptic number.

5260378687 is a deficient number, since it is larger than the sum of its proper divisors (7770809).

5260378687 is an equidigital number, since it uses as much as digits as its factorization.

5260378687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770808.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The square root of 5260378687 is about 72528.4681142515. The cubic root of 5260378687 is about 1739.1578572191.

The spelling of 5260378687 in words is "five billion, two hundred sixty million, three hundred seventy-eight thousand, six hundred eighty-seven".