3651679512 has 48 divisors (see below), whose sum is σ = 10650734640. Its totient is φ = 1123593408.

The previous prime is 3651679459. The next prime is 3651679513. The reversal of 3651679512 is 2159761563.

3651679512 is a `hidden beast` number, since 3 + 65 + 1 + 6 + 79 + 512 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3651679513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1949748 + ... + 1951619.

It is an arithmetic number, because the mean of its divisors is an integer number (221890305).

Almost surely, 2^3651679512 is an apocalyptic number.

It is an amenable number.

3651679512 is an abundant number, since it is smaller than the sum of its proper divisors (6999055128).

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

3651679512 is a wasteful number, since it uses less digits than its factorization.

3651679512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901392 (or 3901385 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 3651679512 is about 60429.1280095948. The cubic root of 3651679512 is about 1539.9178446081.

The spelling of 3651679512 in words is "three billion, six hundred fifty-one million, six hundred seventy-nine thousand, five hundred twelve".