3645869064 has 32 divisors (see below), whose sum is σ = 9195340320. Its totient is φ = 1204534016.

The previous prime is 3645869041. The next prime is 3645869159. The reversal of 3645869064 is 4609685463.

It is a happy number.

It is a super-2 number, since 2×3645869064² = 26584722463664472192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3645868998 and 3645869016.

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, 669462 + ... + 674885.

It is an arithmetic number, because the mean of its divisors is an integer number (287354385).

Almost surely, 2^3645869064 is an apocalyptic number.

It is an amenable number.

3645869064 is an abundant number, since it is smaller than the sum of its proper divisors (5549471256).

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

3645869064 is a wasteful number, since it uses less digits than its factorization.

3645869064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344469 (or 1344465 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The square root of 3645869064 is about 60381.0323197608. The cubic root of 3645869064 is about 1539.1006532802.

The spelling of 3645869064 in words is "three billion, six hundred forty-five million, eight hundred sixty-nine thousand, sixty-four".