5261778237 has 8 divisors (see below), whose sum is σ = 7016132736. Its totient is φ = 3507637952.

The previous prime is 5261778233. The next prime is 5261778253. The reversal of 5261778237 is 7328771625.

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

It is a cyclic number.

It is not a de Polignac number, because 5261778237 - 2² = 5261778233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261778233) 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 in 7 ways as a sum of consecutive naturals, for example, 17068 + ... + 103994.

It is an arithmetic number, because the mean of its divisors is an integer number (877016592).

Almost surely, 2^5261778237 is an apocalyptic number.

It is an amenable number.

5261778237 is a deficient number, since it is larger than the sum of its proper divisors (1754354499).

5261778237 is a wasteful number, since it uses less digits than its factorization.

5261778237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107107.

The product of its digits is 987840, while the sum is 48.

The square root of 5261778237 is about 72538.1157530301. The cubic root of 5261778237 is about 1739.3120807515.

The spelling of 5261778237 in words is "five billion, two hundred sixty-one million, seven hundred seventy-eight thousand, two hundred thirty-seven".