2111677545 has 8 divisors (see below), whose sum is σ = 3378684096. Its totient is φ = 1126228016.

The previous prime is 2111677511. The next prime is 2111677549. The reversal of 2111677545 is 5457761112.

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 2111677545 - 2⁹ = 2111677033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111677549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70389237 + ... + 70389266.

It is an arithmetic number, because the mean of its divisors is an integer number (422335512).

Almost surely, 2^2111677545 is an apocalyptic number.

It is an amenable number.

2111677545 is a deficient number, since it is larger than the sum of its proper divisors (1267006551).

2111677545 is a wasteful number, since it uses less digits than its factorization.

2111677545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140778511.

The product of its digits is 58800, while the sum is 39.

The square root of 2111677545 is about 45952.9927752263. The cubic root of 2111677545 is about 1282.9484328743.

The spelling of 2111677545 in words is "two billion, one hundred eleven million, six hundred seventy-seven thousand, five hundred forty-five".