2670531818 has 4 divisors (see below), whose sum is σ = 4005797730. Its totient is φ = 1335265908.

The previous prime is 2670531811. The next prime is 2670531823. The reversal of 2670531818 is 8181350762.

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., 1384807369 + 1285724449 = 37213^2 + 35857^2 .

It is not an unprimeable number, because it can be changed into a prime (2670531811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667632953 + ... + 667632956.

Almost surely, 2^2670531818 is an apocalyptic number.

2670531818 is a deficient number, since it is larger than the sum of its proper divisors (1335265912).

2670531818 is a wasteful number, since it uses less digits than its factorization.

2670531818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335265911.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 2670531818 is about 51677.1885651687. The cubic root of 2670531818 is about 1387.3922118253.

The spelling of 2670531818 in words is "two billion, six hundred seventy million, five hundred thirty-one thousand, eight hundred eighteen".