3646239744056 has 64 divisors (see below), whose sum is σ = 8478631687680. Its totient is φ = 1431457223040.

The previous prime is 3646239744053. The next prime is 3646239744079. The reversal of 3646239744056 is 6504479326463.

It is a super-3 number, since 3×3646239744056³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 3646239743986 and 3646239744004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646239744053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19021316 + ... + 19212051.

It is an arithmetic number, because the mean of its divisors is an integer number (132478620120).

Almost surely, 2^{3646239744056} is an apocalyptic number.

It is an amenable number.

3646239744056 is an abundant number, since it is smaller than the sum of its proper divisors (4832391943624).

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

3646239744056 is a wasteful number, since it uses less digits than its factorization.

3646239744056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38233524 (or 38233520 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 59.

The spelling of 3646239744056 in words is "three trillion, six hundred forty-six billion, two hundred thirty-nine million, seven hundred forty-four thousand, fifty-six".