3612764644 has 6 divisors (see below), whose sum is σ = 6322338134. Its totient is φ = 1806382320.

The previous prime is 3612764621. The next prime is 3612764657. The reversal of 3612764644 is 4464672163.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3608404900 + 4359744 = 60070^2 + 2088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3612764644.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451595577 + ... + 451595584.

Almost surely, 2^3612764644 is an apocalyptic number.

It is an amenable number.

3612764644 is a deficient number, since it is larger than the sum of its proper divisors (2709573490).

3612764644 is a wasteful number, since it uses less digits than its factorization.

3612764644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903191165 (or 903191163 counting only the distinct ones).

The product of its digits is 580608, while the sum is 43.

The square root of 3612764644 is about 60106.2779083849. The cubic root of 3612764644 is about 1534.4281478896.

The spelling of 3612764644 in words is "three billion, six hundred twelve million, seven hundred sixty-four thousand, six hundred forty-four".