949978046398429 has 2 divisors, whose sum is σ = 949978046398430. Its totient is φ = 949978046398428.

The previous prime is 949978046398373. The next prime is 949978046398487. The reversal of 949978046398429 is 924893640879949.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626208333464025 + 323769712934404 = 25024155^2 + 17993602^2 .

It is a cyclic number.

It is not a de Polignac number, because 949978046398429 - 2¹³ = 949978046390237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949978046393429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474989023199214 + 474989023199215.

It is an arithmetic number, because the mean of its divisors is an integer number (474989023199215).

Almost surely, 2^{949978046398429} is an apocalyptic number.

It is an amenable number.

949978046398429 is a deficient number, since it is larger than the sum of its proper divisors (1).

949978046398429 is an equidigital number, since it uses as much as digits as its factorization.

949978046398429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60949905408, while the sum is 91.

The spelling of 949978046398429 in words is "nine hundred forty-nine trillion, nine hundred seventy-eight billion, forty-six million, three hundred ninety-eight thousand, four hundred twenty-nine".