1954717169479 has 2 divisors, whose sum is σ = 1954717169480. Its totient is φ = 1954717169478.

The previous prime is 1954717169429. The next prime is 1954717169507. The reversal of 1954717169479 is 9749617174591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1954717169479 - 2⁹ = 1954717168967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1954717169429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977358584739 + 977358584740.

It is an arithmetic number, because the mean of its divisors is an integer number (977358584740).

Almost surely, 2^{1954717169479} is an apocalyptic number.

1954717169479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954717169479 is an equidigital number, since it uses as much as digits as its factorization.

1954717169479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120022560, while the sum is 70.

The spelling of 1954717169479 in words is "one trillion, nine hundred fifty-four billion, seven hundred seventeen million, one hundred sixty-nine thousand, four hundred seventy-nine".