805760067490 has 24 divisors (see below), whose sum is σ = 1687162917852. Its totient is φ = 276260594400.

The previous prime is 805760067487. The next prime is 805760067491. The reversal of 805760067490 is 94760067508.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 709167778641 + 96592288849 = 842121^2 + 310793^2 .

It is a super-2 number, since 2×805760067490² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) 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 (805760067491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 822203661 + ... + 822204640.

Almost surely, 2^805760067490 is an apocalyptic number.

805760067490 is an abundant number, since it is smaller than the sum of its proper divisors (881402850362).

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

805760067490 is a wasteful number, since it uses less digits than its factorization.

805760067490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644408322 (or 1644408315 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 805760067490 in words is "eight hundred five billion, seven hundred sixty million, sixty-seven thousand, four hundred ninety".