3826538261 has 16 divisors (see below), whose sum is σ = 4836875904. Its totient is φ = 2945761344.

The previous prime is 3826538251. The next prime is 3826538273. The reversal of 3826538261 is 1628356283.

It is a cyclic number.

It is not a de Polignac number, because 3826538261 - 2²² = 3822343957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3826538251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564875 + ... + 571608.

It is an arithmetic number, because the mean of its divisors is an integer number (302304744).

Almost surely, 2^3826538261 is an apocalyptic number.

It is an amenable number.

3826538261 is a deficient number, since it is larger than the sum of its proper divisors (1010337643).

3826538261 is a wasteful number, since it uses less digits than its factorization.

3826538261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136540.

The product of its digits is 414720, while the sum is 44.

The square root of 3826538261 is about 61859.0192372947. The cubic root of 3826538261 is about 1564.1150206866.

The spelling of 3826538261 in words is "three billion, eight hundred twenty-six million, five hundred thirty-eight thousand, two hundred sixty-one".