5640649262 has 8 divisors (see below), whose sum is σ = 8473932936. Its totient is φ = 2816004952.

The previous prime is 5640649219. The next prime is 5640649271. The reversal of 5640649262 is 2629460465.

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

It is a super-2 number, since 2×5640649262² = 63633848193802289288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2158208 + ... + 2160819.

It is an arithmetic number, because the mean of its divisors is an integer number (1059241617).

Almost surely, 2^5640649262 is an apocalyptic number.

5640649262 is a deficient number, since it is larger than the sum of its proper divisors (2833283674).

5640649262 is a wasteful number, since it uses less digits than its factorization.

5640649262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319682.

The product of its (nonzero) digits is 622080, while the sum is 44.

The square root of 5640649262 is about 75104.2559513108. The cubic root of 5640649262 is about 1780.0943919560.

The spelling of 5640649262 in words is "five billion, six hundred forty million, six hundred forty-nine thousand, two hundred sixty-two".