3781926741 has 4 divisors (see below), whose sum is σ = 5042568992. Its totient is φ = 2521284492.

The previous prime is 3781926721. The next prime is 3781926781. The reversal of 3781926741 is 1476291873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3781926741 - 2¹¹ = 3781924693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781926721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630321121 + ... + 630321126.

It is an arithmetic number, because the mean of its divisors is an integer number (1260642248).

Almost surely, 2^3781926741 is an apocalyptic number.

It is an amenable number.

3781926741 is a deficient number, since it is larger than the sum of its proper divisors (1260642251).

3781926741 is a wasteful number, since it uses less digits than its factorization.

3781926741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260642250.

The product of its digits is 508032, while the sum is 48.

The square root of 3781926741 is about 61497.3718218917. The cubic root of 3781926741 is about 1558.0128573255.

The spelling of 3781926741 in words is "three billion, seven hundred eighty-one million, nine hundred twenty-six thousand, seven hundred forty-one".