2635564012 has 6 divisors (see below), whose sum is σ = 4612237028. Its totient is φ = 1317782004.

The previous prime is 2635563991. The next prime is 2635564013. The reversal of 2635564012 is 2104655362.

It is a super-2 number, since 2×2635564012² = 13892395322699072288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2635564013) 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, 329445498 + ... + 329445505.

Almost surely, 2^2635564012 is an apocalyptic number.

It is an amenable number.

2635564012 is a deficient number, since it is larger than the sum of its proper divisors (1976673016).

2635564012 is a wasteful number, since it uses less digits than its factorization.

2635564012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658891007 (or 658891005 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2635564012 is about 51337.7445160965. The cubic root of 2635564012 is about 1381.3101071091.

The spelling of 2635564012 in words is "two billion, six hundred thirty-five million, five hundred sixty-four thousand, twelve".