4950712951661 has 4 divisors (see below), whose sum is σ = 4951616536800. Its totient is φ = 4949809366524.

The previous prime is 4950712951643. The next prime is 4950712951673. The reversal of 4950712951661 is 1661592170594.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4950712951661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4950712951597 and 4950712951606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4950712950661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451784351 + ... + 451795308.

It is an arithmetic number, because the mean of its divisors is an integer number (1237904134200).

Almost surely, 2^{4950712951661} is an apocalyptic number.

It is an amenable number.

4950712951661 is a deficient number, since it is larger than the sum of its proper divisors (903585139).

4950712951661 is an equidigital number, since it uses as much as digits as its factorization.

4950712951661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903585138.

The product of its (nonzero) digits is 4082400, while the sum is 56.

The spelling of 4950712951661 in words is "four trillion, nine hundred fifty billion, seven hundred twelve million, nine hundred fifty-one thousand, six hundred sixty-one".