13651004646 has 48 divisors (see below), whose sum is σ = 30150322800. Its totient is φ = 4462755264.

The previous prime is 13651004639. The next prime is 13651004677. The reversal of 13651004646 is 64640015631.

It is a happy number.

13651004646 is a `hidden beast` number, since 1 + 3 + 6 + 5 + 1 + 0 + 0 + 4 + 646 = 666.

It is a super-2 number, since 2×13651004646² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13651004646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251460 + ... + 300888.

It is an arithmetic number, because the mean of its divisors is an integer number (628131725).

Almost surely, 2^13651004646 is an apocalyptic number.

13651004646 is an abundant number, since it is smaller than the sum of its proper divisors (16499318154).

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

13651004646 is a wasteful number, since it uses less digits than its factorization.

13651004646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49733 (or 49730 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 13651004646 in words is "thirteen billion, six hundred fifty-one million, four thousand, six hundred forty-six".