6496863690 has 64 divisors (see below), whose sum is σ = 16006056192. Its totient is φ = 1686720000.

The previous prime is 6496863677. The next prime is 6496863691. The reversal of 6496863690 is 963686946.

It is a super-2 number, since 2×6496863690² = 84418475612880832200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6496863690.

It is not an unprimeable number, because it can be changed into a prime (6496863691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 613440 + ... + 623940.

It is an arithmetic number, because the mean of its divisors is an integer number (250094628).

Almost surely, 2^6496863690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6496863690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8003028096).

6496863690 is an abundant number, since it is smaller than the sum of its proper divisors (9509192502).

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

6496863690 is a wasteful number, since it uses less digits than its factorization.

6496863690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11055.

The product of its (nonzero) digits is 10077696, while the sum is 57.

The square root of 6496863690 is about 80603.1245672275. The cubic root of 6496863690 is about 1865.9553682709.

The spelling of 6496863690 in words is "six billion, four hundred ninety-six million, eight hundred sixty-three thousand, six hundred ninety".