849984426916 has 9 divisors (see below), whose sum is σ = 1487475973921. Its totient is φ = 424991291512.

The previous prime is 849984426899. The next prime is 849984426959. The reversal of 849984426916 is 619624489948.

It is a happy number.

The square root of 849984426916 is 921946.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 535604422500 + 314380004416 = 731850^2 + 560696^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1613406 + ... + 2074378.

Almost surely, 2^849984426916 is an apocalyptic number.

849984426916 is the 921946-th square number.

It is an amenable number.

849984426916 is a deficient number, since it is larger than the sum of its proper divisors (637491547005).

849984426916 is an frugal number, since it uses more digits than its factorization.

849984426916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921950 (or 460975 counting only the distinct ones).

The product of its digits is 214990848, while the sum is 70.

It can be divided in two parts, 849984 and 426916, that added together give a square (1276900 = 1130²).

The spelling of 849984426916 in words is "eight hundred forty-nine billion, nine hundred eighty-four million, four hundred twenty-six thousand, nine hundred sixteen".