2113623577 has 4 divisors (see below), whose sum is σ = 2276210020. Its totient is φ = 1951037136.

The previous prime is 2113623563. The next prime is 2113623601. The reversal of 2113623577 is 7753263112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 227979801 + 1885643776 = 15099^2 + 43424^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113623577 - 2²³ = 2105234969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113623877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81293202 + ... + 81293227.

It is an arithmetic number, because the mean of its divisors is an integer number (569052505).

Almost surely, 2^2113623577 is an apocalyptic number.

It is an amenable number.

2113623577 is a deficient number, since it is larger than the sum of its proper divisors (162586443).

2113623577 is a wasteful number, since it uses less digits than its factorization.

2113623577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162586442.

The product of its digits is 52920, while the sum is 37.

The square root of 2113623577 is about 45974.1620587042. The cubic root of 2113623577 is about 1283.3424154002.

Adding to 2113623577 its reverse (7753263112), we get a palindrome (9866886689).

The spelling of 2113623577 in words is "two billion, one hundred thirteen million, six hundred twenty-three thousand, five hundred seventy-seven".