11790783421 has 2 divisors, whose sum is σ = 11790783422. Its totient is φ = 11790783420.

The previous prime is 11790783353. The next prime is 11790783439. The reversal of 11790783421 is 12438709711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9446868025 + 2343915396 = 97195^2 + 48414^2 .

It is a cyclic number.

It is not a de Polignac number, because 11790783421 - 2¹⁹ = 11790259133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11790786421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5895391710 + 5895391711.

It is an arithmetic number, because the mean of its divisors is an integer number (5895391711).

Almost surely, 2^11790783421 is an apocalyptic number.

It is an amenable number.

11790783421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11790783421 is an equidigital number, since it uses as much as digits as its factorization.

11790783421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 11790783421 in words is "eleven billion, seven hundred ninety million, seven hundred eighty-three thousand, four hundred twenty-one".