4381377261 has 8 divisors (see below), whose sum is σ = 5842510944. Its totient is φ = 2920580880.

The previous prime is 4381377239. The next prime is 4381377263. The reversal of 4381377261 is 1627731834.

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

It is not a de Polignac number, because 4381377261 - 2¹¹ = 4381375213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4381377263) 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, 52275 + ... + 107216.

It is an arithmetic number, because the mean of its divisors is an integer number (730313868).

Almost surely, 2^4381377261 is an apocalyptic number.

It is an amenable number.

4381377261 is a deficient number, since it is larger than the sum of its proper divisors (1461133683).

4381377261 is a wasteful number, since it uses less digits than its factorization.

4381377261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168651.

The product of its digits is 169344, while the sum is 42.

The square root of 4381377261 is about 66191.9727837145. The cubic root of 4381377261 is about 1636.3274528467.

The spelling of 4381377261 in words is "four billion, three hundred eighty-one million, three hundred seventy-seven thousand, two hundred sixty-one".