3777979481 has 4 divisors (see below), whose sum is σ = 3870125364. Its totient is φ = 3685833600.

The previous prime is 3777979463. The next prime is 3777979493. The reversal of 3777979481 is 1849797773.

3777979481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 397603600 + 3380375881 = 19940^2 + 58141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3777979481 is a prime.

It is a super-2 number, since 2×3777979481² = 28546257917714058722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3777979081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46072880 + ... + 46072961.

It is an arithmetic number, because the mean of its divisors is an integer number (967531341).

Almost surely, 2^3777979481 is an apocalyptic number.

It is an amenable number.

3777979481 is a deficient number, since it is larger than the sum of its proper divisors (92145883).

3777979481 is an equidigital number, since it uses as much as digits as its factorization.

3777979481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92145882.

The product of its digits is 18670176, while the sum is 62.

The square root of 3777979481 is about 61465.2705273474. The cubic root of 3777979481 is about 1557.4706273043.

The spelling of 3777979481 in words is "three billion, seven hundred seventy-seven million, nine hundred seventy-nine thousand, four hundred eighty-one".