3826721461 has 2 divisors, whose sum is σ = 3826721462. Its totient is φ = 3826721460.

The previous prime is 3826721449. The next prime is 3826721473. The reversal of 3826721461 is 1641276283.

It is a balanced prime because it is at equal distance from previous prime (3826721449) and next prime (3826721473).

It can be written as a sum of positive squares in only one way, i.e., 3709540836 + 117180625 = 60906^2 + 10825^2 .

It is a cyclic number.

It is not a de Polignac number, because 3826721461 - 2¹³ = 3826713269 is a prime.

It is the 61861-st Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3826721161) by changing a digit.

It is a nontrivial repunit in base 61860.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1913360730 + 1913360731.

It is an arithmetic number, because the mean of its divisors is an integer number (1913360731).

Almost surely, 2^3826721461 is an apocalyptic number.

It is an amenable number.

3826721461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3826721461 is an equidigital number, since it uses as much as digits as its factorization.

3826721461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 3826721461 is about 61860.5000060620. The cubic root of 3826721461 is about 1564.1399815677.

The spelling of 3826721461 in words is "three billion, eight hundred twenty-six million, seven hundred twenty-one thousand, four hundred sixty-one".