464657831809 has 32 divisors (see below), whose sum is σ = 490986220032. Its totient is φ = 439259520000.

The previous prime is 464657831797. The next prime is 464657831819. The reversal of 464657831809 is 908138756464.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 464657831809 - 2⁷ = 464657831681 is a prime.

It is a super-2 number, since 2×464657831809² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (464657831819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80096709 + ... + 80102509.

It is an arithmetic number, because the mean of its divisors is an integer number (15343319376).

Almost surely, 2^464657831809 is an apocalyptic number.

It is an amenable number.

464657831809 is a deficient number, since it is larger than the sum of its proper divisors (26328388223).

464657831809 is a wasteful number, since it uses less digits than its factorization.

464657831809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6297.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 464657831809 in words is "four hundred sixty-four billion, six hundred fifty-seven million, eight hundred thirty-one thousand, eight hundred nine".