3948489751 has 16 divisors (see below), whose sum is σ = 4337569440. Its totient is φ = 3577584640.

The previous prime is 3948489737. The next prime is 3948489763. The reversal of 3948489751 is 1579848493.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3948489751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948489781) 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 in 15 ways as a sum of consecutive naturals, for example, 159531 + ... + 182611.

It is an arithmetic number, because the mean of its divisors is an integer number (271098090).

Almost surely, 2^3948489751 is an apocalyptic number.

3948489751 is a deficient number, since it is larger than the sum of its proper divisors (389079689).

3948489751 is a wasteful number, since it uses less digits than its factorization.

3948489751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23474.

The product of its digits is 8709120, while the sum is 58.

The square root of 3948489751 is about 62837.0094052860. The cubic root of 3948489751 is about 1580.5576399169.

The spelling of 3948489751 in words is "three billion, nine hundred forty-eight million, four hundred eighty-nine thousand, seven hundred fifty-one".