5611378511 has 8 divisors (see below), whose sum is σ = 5670723744. Its totient is φ = 5552064000.

The previous prime is 5611378489. The next prime is 5611378561. The reversal of 5611378511 is 1158731165.

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-5611378511 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 (5611378561) 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, 674966 + ... + 683228.

It is an arithmetic number, because the mean of its divisors is an integer number (708840468).

Almost surely, 2^5611378511 is an apocalyptic number.

5611378511 is a deficient number, since it is larger than the sum of its proper divisors (59345233).

5611378511 is an equidigital number, since it uses as much as digits as its factorization.

5611378511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15361.

The product of its digits is 25200, while the sum is 38.

The square root of 5611378511 is about 74909.1350303820. The cubic root of 5611378511 is about 1777.0099309213.

The spelling of 5611378511 in words is "five billion, six hundred eleven million, three hundred seventy-eight thousand, five hundred eleven".