949978046398461 has 16 divisors (see below), whose sum is σ = 1297538434445568. Its totient is φ = 617868355219200.

The previous prime is 949978046398429. The next prime is 949978046398487. The reversal of 949978046398461 is 164893640879949.

It is not a de Polignac number, because 949978046398461 - 2⁵ = 949978046398429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (949978046398061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544096 + ... + 43591881.

It is an arithmetic number, because the mean of its divisors is an integer number (81096152152848).

Almost surely, 2^{949978046398461} is an apocalyptic number.

It is an amenable number.

949978046398461 is a deficient number, since it is larger than the sum of its proper divisors (347560388047107).

949978046398461 is a wasteful number, since it uses less digits than its factorization.

949978046398461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44311012.

The product of its (nonzero) digits is 20316635136, while the sum is 87.

The spelling of 949978046398461 in words is "nine hundred forty-nine trillion, nine hundred seventy-eight billion, forty-six million, three hundred ninety-eight thousand, four hundred sixty-one".