84491374276 has 81 divisors (see below), whose sum is σ = 158557100653. Its totient is φ = 39392140480.

The previous prime is 84491374259. The next prime is 84491374277. The reversal of 84491374276 is 67247319448.

The square root of 84491374276 is 290674.

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., 16224135876 + 68267238400 = 127374^2 + 261280^2 .

It is a super-2 number, since 2×84491374276² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84491374277) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 949341240 + ... + 949341328.

Almost surely, 2^84491374276 is an apocalyptic number.

84491374276 is the 290674-th square number.

It is an amenable number.

84491374276 is a deficient number, since it is larger than the sum of its proper divisors (74065726377).

84491374276 is an equidigital number, since it uses as much as digits as its factorization.

84491374276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 185 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 55.

The spelling of 84491374276 in words is "eighty-four billion, four hundred ninety-one million, three hundred seventy-four thousand, two hundred seventy-six".