2118245476 has 18 divisors (see below), whose sum is σ = 3912302310. Its totient is φ = 1003378752.

The previous prime is 2118245471. The next prime is 2118245483. The reversal of 2118245476 is 6745428112.

It can be written as a sum of positive squares in only one way, i.e., 2010625600 + 107619876 = 44840^2 + 10374^2 .

It is not an unprimeable number, because it can be changed into a prime (2118245471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 732021 + ... + 734908.

Almost surely, 2^2118245476 is an apocalyptic number.

It is an amenable number.

2118245476 is a deficient number, since it is larger than the sum of its proper divisors (1794056834).

2118245476 is a wasteful number, since it uses less digits than its factorization.

2118245476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466971 (or 1466950 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 2118245476 is about 46024.4008760570. The cubic root of 2118245476 is about 1284.2771704254.

The spelling of 2118245476 in words is "two billion, one hundred eighteen million, two hundred forty-five thousand, four hundred seventy-six".