93436123621 has 2 divisors, whose sum is σ = 93436123622. Its totient is φ = 93436123620.

The previous prime is 93436123589. The next prime is 93436123631. The reversal of 93436123621 is 12632163439.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92775068100 + 661055521 = 304590^2 + 25711^2 .

It is a cyclic number.

It is not a de Polignac number, because 93436123621 - 2⁵ = 93436123589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93436123631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46718061810 + 46718061811.

It is an arithmetic number, because the mean of its divisors is an integer number (46718061811).

Almost surely, 2^93436123621 is an apocalyptic number.

It is an amenable number.

93436123621 is a deficient number, since it is larger than the sum of its proper divisors (1).

93436123621 is an equidigital number, since it uses as much as digits as its factorization.

93436123621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 40.

The spelling of 93436123621 in words is "ninety-three billion, four hundred thirty-six million, one hundred twenty-three thousand, six hundred twenty-one".