949389636722 has 18 divisors (see below), whose sum is σ = 1430706474183. Its totient is φ = 472497657952.

The previous prime is 949389636719. The next prime is 949389636733. The reversal of 949389636722 is 227636983949.

It can be written as a sum of positive squares in 5 ways, for example, as 15443281441 + 933946355281 = 124271^2 + 966409^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=688981.

It is a super-2 number, since 2×949389636722² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 321063668 + ... + 321066624.

Almost surely, 2^949389636722 is an apocalyptic number.

949389636722 is a deficient number, since it is larger than the sum of its proper divisors (481316837461).

949389636722 is an frugal number, since it uses more digits than its factorization.

949389636722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6382 (or 3192 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 68.

The spelling of 949389636722 in words is "nine hundred forty-nine billion, three hundred eighty-nine million, six hundred thirty-six thousand, seven hundred twenty-two".