3779482039921 has 27 divisors (see below), whose sum is σ = 4422511686411. Its totient is φ = 3220531179264.

The previous prime is 3779482039877. The next prime is 3779482039961. The reversal of 3779482039921 is 1299302849773.

The square root of 3779482039921 is 1944089.

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., 915724594225 + 2863757445696 = 956935^2 + 1692264^2 .

It is not a de Polignac number, because 3779482039921 - 2⁹ = 3779482039409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3779482039961) 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, 2626463520 + ... + 2626464958.

Almost surely, 2^{3779482039921} is an apocalyptic number.

3779482039921 is the 1944089-th square number.

3779482039921 is the 972045-th centered octagonal number.

It is an amenable number.

3779482039921 is a deficient number, since it is larger than the sum of its proper divisors (643029646490).

3779482039921 is an frugal number, since it uses more digits than its factorization.

3779482039921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 64.

Multiplying 3779482039921 by its sum of digits (64), we get a square (241886850554944 = 15552712²).

The spelling of 3779482039921 in words is "three trillion, seven hundred seventy-nine billion, four hundred eighty-two million, thirty-nine thousand, nine hundred twenty-one".