864519126 has 16 divisors (see below), whose sum is σ = 1745198784. Its totient is φ = 285479624.

The previous prime is 864519121. The next prime is 864519127. The reversal of 864519126 is 621915468.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864519121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672660 + ... + 673943.

It is an arithmetic number, because the mean of its divisors is an integer number (109074924).

Almost surely, 2^864519126 is an apocalyptic number.

864519126 is an abundant number, since it is smaller than the sum of its proper divisors (880679658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864519126 is a wasteful number, since it uses less digits than its factorization.

864519126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346715.

The product of its digits is 103680, while the sum is 42.

The square root of 864519126 is about 29402.7060999494. The cubic root of 864519126 is about 952.6313478871.

The spelling of 864519126 in words is "eight hundred sixty-four million, five hundred nineteen thousand, one hundred twenty-six".