19793805094979 has 2 divisors, whose sum is σ = 19793805094980. Its totient is φ = 19793805094978.

The previous prime is 19793805094933. The next prime is 19793805094993. The reversal of 19793805094979 is 97949050839791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19793805094979 - 2¹⁶ = 19793805029443 is a prime.

It is a super-2 number, since 2×19793805094979² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19793805094919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9896902547489 + 9896902547490.

It is an arithmetic number, because the mean of its divisors is an integer number (9896902547490).

Almost surely, 2^{19793805094979} is an apocalyptic number.

19793805094979 is a deficient number, since it is larger than the sum of its proper divisors (1).

19793805094979 is an equidigital number, since it uses as much as digits as its factorization.

19793805094979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1388832480, while the sum is 80.

The spelling of 19793805094979 in words is "nineteen trillion, seven hundred ninety-three billion, eight hundred five million, ninety-four thousand, nine hundred seventy-nine".