6863893650 has 72 divisors (see below), whose sum is σ = 19525780404. Its totient is φ = 1722700800.

The previous prime is 6863893601. The next prime is 6863893661. The reversal of 6863893650 is 563983686.

It can be written as a sum of positive squares in 6 ways, for example, as 4650285249 + 2213608401 = 68193^2 + 47049^2 .

It is a super-2 number, since 2×6863893650² = 94226072077020645000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 440971 + ... + 456270.

Almost surely, 2^6863893650 is an apocalyptic number.

6863893650 is an abundant number, since it is smaller than the sum of its proper divisors (12661886754).

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

6863893650 is a wasteful number, since it uses less digits than its factorization.

6863893650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897276 (or 897268 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The square root of 6863893650 is about 82848.6188780477. The cubic root of 6863893650 is about 1900.4517531530.

The spelling of 6863893650 in words is "six billion, eight hundred sixty-three million, eight hundred ninety-three thousand, six hundred fifty".