61126082423621 has 2 divisors, whose sum is σ = 61126082423622. Its totient is φ = 61126082423620.

The previous prime is 61126082423569. The next prime is 61126082423663. The reversal of 61126082423621 is 12632428062116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49497204930625 + 11628877492996 = 7035425^2 + 3410114^2 .

It is a cyclic number.

It is not a de Polignac number, because 61126082423621 - 2²² = 61126078229317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61126082423321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30563041211810 + 30563041211811.

It is an arithmetic number, because the mean of its divisors is an integer number (30563041211811).

Almost surely, 2^{61126082423621} is an apocalyptic number.

It is an amenable number.

61126082423621 is a deficient number, since it is larger than the sum of its proper divisors (1).

61126082423621 is an equidigital number, since it uses as much as digits as its factorization.

61126082423621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 61126082423621 in words is "sixty-one trillion, one hundred twenty-six billion, eighty-two million, four hundred twenty-three thousand, six hundred twenty-one".