6340681652 has 12 divisors (see below), whose sum is σ = 11366832036. Its totient is φ = 3093015360.

The previous prime is 6340681637. The next prime is 6340681673. The reversal of 6340681652 is 2561860436.

It can be written as a sum of positive squares in 2 ways, for example, as 893651236 + 5447030416 = 29894^2 + 73804^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19331183 + ... + 19331510.

It is an arithmetic number, because the mean of its divisors is an integer number (947236003).

Almost surely, 2^6340681652 is an apocalyptic number.

It is an amenable number.

6340681652 is a deficient number, since it is larger than the sum of its proper divisors (5026150384).

6340681652 is a wasteful number, since it uses less digits than its factorization.

6340681652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38662738 (or 38662736 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 6340681652 is about 79628.3972713253. The cubic root of 6340681652 is about 1850.8816495998.

The spelling of 6340681652 in words is "six billion, three hundred forty million, six hundred eighty-one thousand, six hundred fifty-two".