2611621612 has 6 divisors (see below), whose sum is σ = 4570337828. Its totient is φ = 1305810804.

The previous prime is 2611621577. The next prime is 2611621619. The reversal of 2611621612 is 2161261162.

It is not an unprimeable number, because it can be changed into a prime (2611621619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326452698 + ... + 326452705.

Almost surely, 2^2611621612 is an apocalyptic number.

It is an amenable number.

2611621612 is a deficient number, since it is larger than the sum of its proper divisors (1958716216).

2611621612 is a wasteful number, since it uses less digits than its factorization.

2611621612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652905407 (or 652905405 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 2611621612 is about 51104.0273559726. The cubic root of 2611621612 is about 1377.1146062565.

Adding to 2611621612 its reverse (2161261162), we get a palindrome (4772882774).

The spelling of 2611621612 in words is "two billion, six hundred eleven million, six hundred twenty-one thousand, six hundred twelve".