5261905685 has 8 divisors (see below), whose sum is σ = 6316700760. Its totient is φ = 4207915264.

The previous prime is 5261905651. The next prime is 5261905687. The reversal of 5261905685 is 5865091625.

It can be written as a sum of positive squares in 4 ways, for example, as 7540516 + 5254365169 = 2746^2 + 72487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5261905685 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261905687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186680 + ... + 213009.

It is an arithmetic number, because the mean of its divisors is an integer number (789587595).

Almost surely, 2^5261905685 is an apocalyptic number.

It is an amenable number.

5261905685 is a deficient number, since it is larger than the sum of its proper divisors (1054795075).

5261905685 is a wasteful number, since it uses less digits than its factorization.

5261905685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402327.

The product of its (nonzero) digits is 648000, while the sum is 47.

The square root of 5261905685 is about 72538.9942375823. The cubic root of 5261905685 is about 1739.3261235362.

The spelling of 5261905685 in words is "five billion, two hundred sixty-one million, nine hundred five thousand, six hundred eighty-five".