2621113018 has 4 divisors (see below), whose sum is σ = 3931669530. Its totient is φ = 1310556508.

The previous prime is 2621112979. The next prime is 2621113037. The reversal of 2621113018 is 8103111262.

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

It can be written as a sum of positive squares in only one way, i.e., 2197453129 + 423659889 = 46877^2 + 20583^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2621112983 and 2621113001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655278253 + ... + 655278256.

Almost surely, 2^2621113018 is an apocalyptic number.

2621113018 is a deficient number, since it is larger than the sum of its proper divisors (1310556512).

2621113018 is a wasteful number, since it uses less digits than its factorization.

2621113018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310556511.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2621113018 is about 51196.8067168256. The cubic root of 2621113018 is about 1378.7808700241.

The spelling of 2621113018 in words is "two billion, six hundred twenty-one million, one hundred thirteen thousand, eighteen".