3246628713640 has 64 divisors (see below), whose sum is σ = 7867042218000. Its totient is φ = 1198723049472.

The previous prime is 3246628713583. The next prime is 3246628713697. The reversal of 3246628713640 is 463178266423.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3246628713583) and next prime (3246628713697).

It can be written as a sum of positive squares in 8 ways, for example, as 1255972972804 + 1990655740836 = 1120702^2 + 1410906^2 .

It is a super-4 number, since 4×3246628713640⁴ (a number of 51 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29037684 + ... + 29149276.

Almost surely, 2^{3246628713640} is an apocalyptic number.

It is an amenable number.

3246628713640 is an abundant number, since it is smaller than the sum of its proper divisors (4620413504360).

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

3246628713640 is a wasteful number, since it uses less digits than its factorization.

3246628713640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167566 (or 167562 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 3246628713640 in words is "three trillion, two hundred forty-six billion, six hundred twenty-eight million, seven hundred thirteen thousand, six hundred forty".