2943786645 has 40 divisors (see below), whose sum is σ = 5292470304. Its totient is φ = 1565420256.

The previous prime is 2943786557. The next prime is 2943786709. The reversal of 2943786645 is 5466873492.

It is not a de Polignac number, because 2943786645 - 2⁸ = 2943786389 is a prime.

It is a super-2 number, since 2×2943786645² = 17331759622560712050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2943786591 and 2943786600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 130062 + ... + 151008.

Almost surely, 2^2943786645 is an apocalyptic number.

It is an amenable number.

2943786645 is a deficient number, since it is larger than the sum of its proper divisors (2348683659).

2943786645 is a wasteful number, since it uses less digits than its factorization.

2943786645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21311 (or 21302 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 2943786645 is about 54256.6737369699. The cubic root of 2943786645 is about 1433.1845252340.

The spelling of 2943786645 in words is "two billion, nine hundred forty-three million, seven hundred eighty-six thousand, six hundred forty-five".