1826194794979 has 2 divisors, whose sum is σ = 1826194794980. Its totient is φ = 1826194794978.

The previous prime is 1826194794971. The next prime is 1826194794989. The reversal of 1826194794979 is 9794974916281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1826194794979 - 2³ = 1826194794971 is a prime.

It is a super-2 number, since 2×1826194794979² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1826194794971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 913097397489 + 913097397490.

It is an arithmetic number, because the mean of its divisors is an integer number (913097397490).

Almost surely, 2^{1826194794979} is an apocalyptic number.

1826194794979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1826194794979 is an equidigital number, since it uses as much as digits as its factorization.

1826194794979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493807104, while the sum is 76.

The spelling of 1826194794979 in words is "one trillion, eight hundred twenty-six billion, one hundred ninety-four million, seven hundred ninety-four thousand, nine hundred seventy-nine".