3918253973764 has 81 divisors (see below), whose sum is σ = 7838287479477. Its totient is φ = 1712817089568.

The previous prime is 3918253973747. The next prime is 3918253973779. The reversal of 3918253973764 is 4673793528193.

The square root of 3918253973764 is 1979458.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 579623368900 + 3338630604864 = 761330^2 + 1827192^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3918253973764.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 977850249 + ... + 977854255.

Almost surely, 2^{3918253973764} is an apocalyptic number.

3918253973764 is the 1979458-th square number.

It is an amenable number.

3918253973764 is an abundant number, since it is smaller than the sum of its proper divisors (3920033505713).

3918253973764 is an equidigital number, since it uses as much as digits as its factorization.

3918253973764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8082 (or 4041 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 67.

The spelling of 3918253973764 in words is "three trillion, nine hundred eighteen billion, two hundred fifty-three million, nine hundred seventy-three thousand, seven hundred sixty-four".