949978046398487 has 2 divisors, whose sum is σ = 949978046398488. Its totient is φ = 949978046398486.

The previous prime is 949978046398429. The next prime is 949978046398607. The reversal of 949978046398487 is 784893640879949.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 949978046398487 - 2³⁴ = 949960866529303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 949978046398487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949978046398687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474989023199243 + 474989023199244.

It is an arithmetic number, because the mean of its divisors is an integer number (474989023199244).

Almost surely, 2^{949978046398487} is an apocalyptic number.

949978046398487 is a deficient number, since it is larger than the sum of its proper divisors (1).

949978046398487 is an equidigital number, since it uses as much as digits as its factorization.

949978046398487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189621927936, while the sum is 95.

The spelling of 949978046398487 in words is "nine hundred forty-nine trillion, nine hundred seventy-eight billion, forty-six million, three hundred ninety-eight thousand, four hundred eighty-seven".