2606432643 has 6 divisors (see below), whose sum is σ = 3764847164. Its totient is φ = 1737621756.

The previous prime is 2606432629. The next prime is 2606432651. The reversal of 2606432643 is 3462346062.

2606432643 is a `hidden beast` number, since 2 + 6 + 0 + 6 + 4 + 3 + 2 + 643 = 666.

It is not a de Polignac number, because 2606432643 - 2⁹ = 2606432131 is a prime.

It is a super-2 number, since 2×2606432643² = 13586982244991930898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2606432598 and 2606432607.

It is not an unprimeable number, because it can be changed into a prime (2606432603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144801805 + ... + 144801822.

Almost surely, 2^2606432643 is an apocalyptic number.

2606432643 is a deficient number, since it is larger than the sum of its proper divisors (1158414521).

2606432643 is a wasteful number, since it uses less digits than its factorization.

2606432643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289603633 (or 289603630 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 2606432643 is about 51053.2334235551. The cubic root of 2606432643 is about 1376.2019494344.

The spelling of 2606432643 in words is "two billion, six hundred six million, four hundred thirty-two thousand, six hundred forty-three".