10933697821 has 2 divisors, whose sum is σ = 10933697822. Its totient is φ = 10933697820.

The previous prime is 10933697813. The next prime is 10933697851. The reversal of 10933697821 is 12879633901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9155810596 + 1777887225 = 95686^2 + 42165^2 .

It is a cyclic number.

It is not a de Polignac number, because 10933697821 - 2³ = 10933697813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10933697851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5466848910 + 5466848911.

It is an arithmetic number, because the mean of its divisors is an integer number (5466848911).

Almost surely, 2^10933697821 is an apocalyptic number.

It is an amenable number.

10933697821 is a deficient number, since it is larger than the sum of its proper divisors (1).

10933697821 is an equidigital number, since it uses as much as digits as its factorization.

10933697821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 10933697821 in words is "ten billion, nine hundred thirty-three million, six hundred ninety-seven thousand, eight hundred twenty-one".