3777481961 has 8 divisors (see below), whose sum is σ = 4163373984. Its totient is φ = 3398670720.

The previous prime is 3777481943. The next prime is 3777482039. The reversal of 3777481961 is 1691847773.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3777481961 - 2¹⁴ = 3777465577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3777481901) 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 7 ways as a sum of consecutive naturals, for example, 1769075 + ... + 1771208.

It is an arithmetic number, because the mean of its divisors is an integer number (520421748).

Almost surely, 2^3777481961 is an apocalyptic number.

It is an amenable number.

3777481961 is a deficient number, since it is larger than the sum of its proper divisors (385892023).

3777481961 is a wasteful number, since it uses less digits than its factorization.

3777481961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540391.

The product of its digits is 1778112, while the sum is 53.

The square root of 3777481961 is about 61461.2232305866. The cubic root of 3777481961 is about 1557.4022568251.

The spelling of 3777481961 in words is "three billion, seven hundred seventy-seven million, four hundred eighty-one thousand, nine hundred sixty-one".