3978848501 has 6 divisors (see below), whose sum is σ = 4199283702. Its totient is φ = 3769435080.

The previous prime is 3978848441. The next prime is 3978848527. The reversal of 3978848501 is 1058488793.

It can be written as a sum of positive squares in only one way, i.e., 3777946225 + 200902276 = 61465^2 + 14174^2 .

It is not a de Polignac number, because 3978848501 - 2²² = 3974654197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978848551) 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 5 ways as a sum of consecutive naturals, for example, 5510510 + ... + 5511231.

It is an arithmetic number, because the mean of its divisors is an integer number (699880617).

Almost surely, 2^3978848501 is an apocalyptic number.

It is an amenable number.

3978848501 is a deficient number, since it is larger than the sum of its proper divisors (220435201).

3978848501 is a wasteful number, since it uses less digits than its factorization.

3978848501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11021779 (or 11021760 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 3978848501 is about 63078.1142790429. The cubic root of 3978848501 is about 1584.5981129702.

The spelling of 3978848501 in words is "three billion, nine hundred seventy-eight million, eight hundred forty-eight thousand, five hundred one".