2628961633 has 4 divisors (see below), whose sum is σ = 2630054448. Its totient is φ = 2627868820.

The previous prime is 2628961613. The next prime is 2628961691. The reversal of 2628961633 is 3361698262.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2628961633 - 2²¹ = 2626864481 is a prime.

It is a super-2 number, since 2×2628961633² = 13822878535572053378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2628961613) 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, 542791 + ... + 547612.

It is an arithmetic number, because the mean of its divisors is an integer number (657513612).

Almost surely, 2^2628961633 is an apocalyptic number.

It is an amenable number.

2628961633 is a deficient number, since it is larger than the sum of its proper divisors (1092815).

2628961633 is a wasteful number, since it uses less digits than its factorization.

2628961633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092814.

The product of its digits is 559872, while the sum is 46.

The square root of 2628961633 is about 51273.4008331806. The cubic root of 2628961633 is about 1380.1556977937.

The spelling of 2628961633 in words is "two billion, six hundred twenty-eight million, nine hundred sixty-one thousand, six hundred thirty-three".