5177749261 has 4 divisors (see below), whose sum is σ = 5450262400. Its totient is φ = 4905236124.

The previous prime is 5177749237. The next prime is 5177749267. The reversal of 5177749261 is 1629477715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5177749261 - 2¹¹ = 5177747213 is a prime.

It is a super-2 number, since 2×5177749261² = 53618174819572092242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5177749267) 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 3 ways as a sum of consecutive naturals, for example, 136256541 + ... + 136256578.

It is an arithmetic number, because the mean of its divisors is an integer number (1362565600).

Almost surely, 2^5177749261 is an apocalyptic number.

It is an amenable number.

5177749261 is a deficient number, since it is larger than the sum of its proper divisors (272513139).

5177749261 is a wasteful number, since it uses less digits than its factorization.

5177749261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272513138.

The product of its digits is 740880, while the sum is 49.

The square root of 5177749261 is about 71956.5789973370. The cubic root of 5177749261 is about 1730.0035930517.

The spelling of 5177749261 in words is "five billion, one hundred seventy-seven million, seven hundred forty-nine thousand, two hundred sixty-one".