834465807081 has 63 divisors (see below), whose sum is σ = 1308777971277. Its totient is φ = 531761380920.

The previous prime is 834465807079. The next prime is 834465807089. The reversal of 834465807081 is 180708564438.

The square root of 834465807081 is 913491.

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

834465807081 is a `hidden beast` number, since 8 + 3 + 446 + 58 + 0 + 70 + 81 = 666.

It is not a de Polignac number, because 834465807081 - 2¹ = 834465807079 is a prime.

It is a super-2 number, since 2×834465807081² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (834465807089) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 567277176 + ... + 567278646.

Almost surely, 2^834465807081 is an apocalyptic number.

834465807081 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

834465807081 is the 913491-st square number.

834465807081 is the 456746-th centered octagonal number.

It is an amenable number.

834465807081 is a deficient number, since it is larger than the sum of its proper divisors (474312164196).

834465807081 is an frugal number, since it uses more digits than its factorization.

834465807081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 834465807081 in words is "eight hundred thirty-four billion, four hundred sixty-five million, eight hundred seven thousand, eighty-one".