3921702948241 has 27 divisors (see below), whose sum is σ = 4268574346491. Its totient is φ = 3601378791504.

The previous prime is 3921702948239. The next prime is 3921702948271. The reversal of 3921702948241 is 1428492071293.

The square root of 3921702948241 is 1980329.

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., 580133572225 + 3341569376016 = 761665^2 + 1827996^2 .

It is not a de Polignac number, because 3921702948241 - 2¹ = 3921702948239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3921702948211) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8933263900 + ... + 8933264338.

Almost surely, 2^{3921702948241} is an apocalyptic number.

3921702948241 is the 1980329-th square number.

3921702948241 is the 990165-th centered octagonal number.

It is an amenable number.

3921702948241 is a deficient number, since it is larger than the sum of its proper divisors (346871398250).

3921702948241 is an frugal number, since it uses more digits than its factorization.

3921702948241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 3921702948241 in words is "three trillion, nine hundred twenty-one billion, seven hundred two million, nine hundred forty-eight thousand, two hundred forty-one".