4971023644 has 12 divisors (see below), whose sum is σ = 8725107664. Its totient is φ = 2478135744.

The previous prime is 4971023641. The next prime is 4971023653. The reversal of 4971023644 is 4463201794.

It is a super-2 number, since 2×4971023644² = 49422152138414077472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4971023597 and 4971023606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4971023641) 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, 1842504 + ... + 1845199.

Almost surely, 2^4971023644 is an apocalyptic number.

It is an amenable number.

4971023644 is a deficient number, since it is larger than the sum of its proper divisors (3754084020).

4971023644 is a wasteful number, since it uses less digits than its factorization.

4971023644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688044 (or 3688042 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 4971023644 is about 70505.4866233827. The cubic root of 4971023644 is about 1706.6662868414. Note that the first 3 decimals are identical.

The spelling of 4971023644 in words is "four billion, nine hundred seventy-one million, twenty-three thousand, six hundred forty-four".