2913649945 has 8 divisors (see below), whose sum is σ = 3519535680. Its totient is φ = 2315482800.

The previous prime is 2913649909. The next prime is 2913649957. The reversal of 2913649945 is 5499463192.

2913649945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2913649945 - 2²¹ = 2911552793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2913649892 and 2913649901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1928815 + ... + 1930324.

It is an arithmetic number, because the mean of its divisors is an integer number (439941960).

Almost surely, 2^2913649945 is an apocalyptic number.

It is an amenable number.

2913649945 is a deficient number, since it is larger than the sum of its proper divisors (605885735).

2913649945 is a wasteful number, since it uses less digits than its factorization.

2913649945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859295.

The product of its digits is 2099520, while the sum is 52.

The square root of 2913649945 is about 53978.2358455702. The cubic root of 2913649945 is about 1428.2770494071.

The spelling of 2913649945 in words is "two billion, nine hundred thirteen million, six hundred forty-nine thousand, nine hundred forty-five".